Login failed for user 'IIS APPPOOL\DefaultAppPool' on SQL Express 2012

I am new to both ASP.NET and SQL Server.
I have IIS8 installed on my Windows 8 PC, together with SQL Server Express 2012. Given my ignorance, I have just set everything up using default values.
I have a very small web site set up in its own folder and set up in IIS 8 as a virtual folder under the default web site. I have also set up a very simple database called 'StockControl' via SSMS, which contains one table called 'Colours' which has two columns.
One page in the website is a simple ASP.NET form which runs on localhost without any problems.
On the second page in the website I added a GridView ASP.NET control, letting Expression Web 4 generate the connection string and place it in a web.config file. I tested the SQL query and the connection as I went along and both came back as successful. So
far, so good.However, when I try to run the page in the browser I get the error message:
Server Error in '/' Application.
Cannot open user default database. Login failed.
Login failed for user 'IIS APPPOOL\DefaultAppPool'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Cannot open user default database. Login failed.
Login failed for user 'IIS APPPOOL\DefaultAppPool'.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[SqlException (0x80131904): Cannot open user default database. Login failed.
Login failed for user 'IIS APPPOOL\DefaultAppPool'.]
I have spent two days trying to find out what I have done wrong and even uninstalled and re-installed SQL Server just in case i'd totally messed up and corrupted the database.
I would really appreciate some help please.

I changed the IIS default identity to NetworkService and got this error instead
Unable to open the physical file "C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\DATA\StockControl.mdf". Operating system error 32: "32(The process cannot access the file because it is being used by another process.)".
An attempt to attach an auto-named database for file C:\Program Files\Microsoft SQL Server\MSSQL11.SQLEXPRESS\MSSQL\DATA\StockControl.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
There is nothing running that is using the database.
I have also set a login up for the Apppool and set the user mapping to the database but the problem persists,
What is so infuriating is that a week ago I had several pages in this website that displayed, inserted, updated and deleted records on this database using ADO as well as ASP.NET running just fine. Then this problem came out of nowhere.

Similar Messages

Cannot connect to newly created SQL 2008 R2 instance. Login failed for user...

I'm not a SQL guy, just figuring my way around here...
I just created a new instance on an existing SQL server. The original instance works fine. On
Database Engine Configuration > Account Provisioning
I selected Windows authentication mode and added several users, myself among them.
Tried to log in with one my account and getting:
TITLE: Connect to Server
Cannot connect to SERVERNAME\INSTANCE.
ADDITIONAL INFORMATION:
Login failed for user 'domain\myusername'. (Microsoft SQL Server, Error: 18456)
Guidance/suggestions?
Thanks,
Scott

http://sqlserver-help.com/2014/07/08/help-how-to-find-cause-of-login-failed-for-user-error/
Balmukund Lakhani
Please mark solved if I've answered your question, vote for it as helpful to help other users find a solution quicker
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How to fix Login failed for user ''. (Microsoft SQL Server, Error: 18456)in windows 2008?

Hi All,
we are facing the Login fails issue .
how to resolve the bellow error , could you please suggested the possible ways .. ASAP
TITLE: Connect to Server
Cannot connect to ..
ADDITIONAL INFORMATION:
Login failed for user ' domain\name'. (Microsoft SQL Server, Error: 18456)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476
BUTTONS:
OK
Log Name: Application
Source: MSSQLSERVER
Date: 10/6/2011 1:56:28 PM
Event ID: 18456
Task Category: Logon
Level: Information
Keywords: Classic,Audit Failure
User: domain\name
Computer:
Description:
Login failed for user ' domain\name'. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: <local machine>]
RAM

I was hitting myself in the head with this problem for a couple of minutes.... Everything was fine on the DC and Domain itself.. I added the Domain admins Group Principal for which I am part of... I was getting this error ... Long History... Short
(Right Click and Run as Administrator took care of this for me..) UAC was the cause of the problem.
Cannot connect to XX-DB-XX3.
===================================
Login failed for user 'XXXXS\XXas'. (.Net SqlClient Data Provider)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=18456&LinkId=20476
Server Name: XX-DB-XX3
Error Number: 18456
Severity: 14
State: 1
Line Number: 65536
Program Location:
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject)
at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart)
at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)
at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
at Microsoft.SqlServer.Management.SqlStudio.Explorer.ObjectExplorerService.ValidateConnection(UIConnectionInfo ci, IServerType server)
at Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectionThreadUser()

Login failed for user 'MgmtSvc-AdminAPI' because the account is currently locked out.

We are getting the following error on our SMA web service machine in the mgmtsvc-adminapi log file.   Im guessing I could have also posted this in the WAP forum.     Any ideas on what would cause this?
Also, we noticed the connection strings in the adminapi site are encrypted as well so not sure what the credentials are that WAP adminapi is using.
System.Data.SqlClient.SqlException (0x80131904): Login failed for user 'MgmtSvc-AdminAPI' because the account is currently locked out. The system administrator can unlock it.
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
Thanks Lance

Just had this error happen again.   THis is the account that microsoft configured during the WAP portal install.   The connection strings in the web.config for the adminapi site is encrypted so you cant see the credentials.
The WAP install didnt create local computer user but does create SQL Auth user with the name of MgmtSvc-AdminAPI
Log Name:      Microsoft-WindowsAzurePack-MgmtSvc-AdminAPI/Operational
Source:        Microsoft-WindowsAzurePack-MgmtSvc-AdminAPI
Date:          12/9/2014 5:07:54 PM
Event ID:      12
Task Category: (65522)
Level:         Error
Keywords:      None
User:          IIS APPPOOL\MgmtSvc-AdminAPI
Computer:      SMAWAPCOMPUTER
Description:
Error:
System.Data.SqlClient.SqlException (0x80131904): Login failed for user 'MgmtSvc-AdminAPI' because the account is currently locked out. The system administrator can unlock it.
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
   at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover)
   at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer
timeout)
   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance,
SqlConnectionString userConnectionOptions, SessionData reconnectSessionData)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.WindowsAzure.Server.Common.SessionManager.<IsMasterAsyncInternal>d__4.MoveNext()
   at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.WindowsAzure.Server.AdminManagement.Service.CleanupRunner.MaintenanceCycleRunner.<RunCycleAsync>d__0.MoveNext()
ClientConnectionId:13052455-e404-404b-abf9-ad4a10f270fd, operationName:, version:, accept language:, subscription Id:, client request Id:, principal Id:, page request Id:, server request id:
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Microsoft-WindowsAzurePack-MgmtSvc-AdminAPI" Guid="{93AB61E1-C729-402F-9569-A23FB5E0B2D6}" />
    <EventID>12</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>65522</Task>
    <Opcode>0</Opcode>
    <Keywords>0x0</Keywords>
    <TimeCreated SystemTime="2014-12-09T23:07:54.084193000Z" />
    <EventRecordID>599</EventRecordID>
    <Correlation />
    <Execution ProcessID="5316" ThreadID="8120" />
    <Channel>Microsoft-WindowsAzurePack-MgmtSvc-AdminAPI/Operational</Channel>
    <Computer>SMAWAPCOMPUTER</Computer>
    <Security UserID="S-1-5-82-1634760204-2030663537-3042087576-1698961595-280283016" />
</System>
<EventData>
    <Data Name="message">
System.Data.SqlClient.SqlException (0x80131904): Login failed for user 'MgmtSvc-AdminAPI' because the account is currently locked out. The system administrator can unlock it.
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
   at System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK)
   at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover)
   at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer
timeout)
   at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance)
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance,
SqlConnectionString userConnectionOptions, SessionData reconnectSessionData)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.WindowsAzure.Server.Common.SessionManager.<IsMasterAsyncInternal>d__4.MoveNext()
   at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.WindowsAzure.Server.AdminManagement.Service.CleanupRunner.MaintenanceCycleRunner.<RunCycleAsync>d__0.MoveNext()
ClientConnectionId:13052455-e404-404b-abf9-ad4a10f270fd</Data>
    <Data Name="requestId">
    </Data>
    <Data Name="subscriptionId">
    </Data>
    <Data Name="clientRequestId">
    </Data>
    <Data Name="principalId">
    </Data>
    <Data Name="version">
    </Data>
    <Data Name="pageRequestId">
    </Data>
    <Data Name="acceptLanguage">
    </Data>
    <Data Name="operationName">
    </Data>
</EventData>
</Event>
Thanks Lance

Deployment issue - Login failed for user 'NT AUTHORITY\NETWORK SERVICE'

I am attempting to deploy a site from my development PC to my server. I have no issues running the site on the server using VS2010 Express Web in debug. All page queries are working within the debugger. The connection strings are identical between the PC
and Server, except the host name.
connectionString
="Data
Source=SOCIALSERVER;Initial Catalog=Intake_be;Integrated Security=True"
However, when using the site normally via IIS, the pages containing data access are failing with a permissions problem. The non-data access pages render normally.
Login failed for user 'NT AUTHORITY\NETWORK SERVICE'
Looking at the SQL2005 instance via SQL Management Studio, I see security folder with Logins under the Server. NTA\NS is listed as a user login. But, I also see similar folders under each
of 3 databases. NTA\NS is not listed as a login specific to my target dB.
My site is for internal (intranet) use only. There is no internet access into my IIS. This is my first deployment into production. I think I only need Windows Authentication but I lack the experience to make a good decision. My goal is to allow domain users
to access pages that produce read only data. But, I also need controlled access to pages that can modify data. I used the native winform template for ASP.NET 4, which includes some roles based security.
How do I grant permissions for internal users on the pages that access SQL data? How does that security model work with the native roles based security? i.e.
add
name="AspNetSqlMembershipProvider"type="System.Web.Security.SqlMembershipProvider"connectionStringName="ApplicationServices"...
etc.
Thanks for your time and patience on this Deployment 101 type issue.
Kurt

hi,
You receive either of these error messages specifically when you use integrated security.
To resolve you can use one of below.
Method 1: Programmatically change the security context of the ASP.NET worker process to a user who has the correct SQL Server permissions.
Method 2: Change the default configuration of ASP.NET so that the ASP.NET worker process starts and runs under the context of a user who has the correct permissions in SQL Server.
Method 3: Grant the correct permissions in SQL Server so that the ASPNET account (or NetworkService account, for an application that runs on IIS 6.0) has the appropriate access to the required resources.(Go to the Computer Management >> Local User and
Groups >> Groups >> Right Click and go to properties on IIS_IUSRS >> Add appropriate user.
Thanx, Mark as answered if you are ok ..

Event 3351, SQL database login for 'DB_Config' on instance failed. Additional error information from SQL server is mentioned below. Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.

category-database
event id-3351
source-sharepoint foundation
SQL database login for 'DB_Config' on instance 'DB\instance' failed. Additional error information from SQL Server is included below:
Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.
I have been getting this error every hour on only 1 application server of the 2.
My farm consists of 2 app servers, 2 wfes & 2 sql nodes.
My public site is working fine. Authentication is NTLM.
SharePoint VSS Writer is disabled.None of my appPool accounts are running under local system.
I have read many forums/blogs, but couldnt find a solution for this.
Any help would be appreciated!

Hi,
As I understand, you found event id 3351 in event log. Please collect more information as below：
Check if the error also occurs on other servers in your farm.
Check if backup job is scheduled at the time when the event id occurs.
Please run Config Wizard or psconfig.exe -cmd secureresources on all servers and test the issue again.
Regards,
Rebecca Tu
TechNet Community Support

Integrated Security results in Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON' after code deployment

Sometimes, when we deploy new code to the server, we're getting the following error:
Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'
we're using windows authentication and in our connectionstring use integrated security.
Only after restarting the server, the application can connect to the DB again. restarting IIS or recycling the application pool doesn't help.
Our application pool is configured using ApplicationPoolIdentity and we would like to keep it as such.
Any idea what we can do to prevent this error from occurring almost every time we deploy code?
Thanks

Hi amisol,
Thanks for your post here.
For your issue is related with asp.net security ,i suggest that you can post your issue to the link below:
http://forums.asp.net/25.aspx/1?Security
Best Regards,
Kevin Shen.

Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.

Trying to get an admin type report working from the server. Works fine when I run it from BIDS since I have all the associated permissions. The report connects to multiple databases on different servers. The servers have links between them,
that is not the issues. I think I would have to change the security settings on the report server itself.
I read the similar posts, but didnt see any mention of verifying the security settings on Report Server itself, in IIS. In my case the web site that the Report Server app is under, has "Allow Anonymous" checked, but not on the app. So
I think that as I hit the url, my credentials are not being carried through. When I browse the report locally on the server, i get
Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'.
Im using integrated windows security for my data sources.

Actually, I think its an issue of Kereros authentication not being enabled for some of the servers that are being referenced in the datasets of the report.
http://blogs.msdn.com/b/sql_protocols/archive/2005/10/12/479871.aspx

Server Error In '/' Application - Login failed for user xyz ...

Hi, I'm brand new here
I would be ever grateful for help on this. It's probably something simple.
I'm coding a website in C# ASP.NET (http://project.arcza.net). There is a registration page where you send your email, username all that stuff to an SQL server. The SQL server runs on my IIS server too. On Visual Studio, I can debug the website (i.e. launch
it on localhost:12345) and I get a fully working website that I can register as a user and it injects into the SQL server's table. If I query the SQL server, I see the results. So it works fine here.
The problem: if I copy the files for the website into the live IIS directory (as opposed from the Visual Studio preview environment) I get a runtime error thing, I have no idea what this means. The live IIS folder is project.arcza.net and I have disabled
security so you can see the full workings of the probem.
It says login failed for user 'pap'. Pap is a user I have added in SQL server, with username pap and password pap. The credentials are correct. I have added a 'connection string' (I have very little idea what this is) with thees credentials for an SQL server
@ localhost, in IIS manager.
Thank you and if you have any idea I'd be very happy.
I should also point out that if I edit properties of pap in SQL server's login thing where it lists the accounts, I cannot save the settings (you know the ones where you give it permissions to access, delete, etc?) I can tick them and click okay but if I
reoped properties and click on (I think off the top of my head it's called 'securities' but I may be wrong, it's 2nd from the bottom of the pane on the left) I see the tickboxes remain unticked. Could this have something to do with the "login failed for
'pap'" message I'm seeing?

Have a look at
Errorlog. you should get reason of login failed for user.
Balmukund Lakhani
Please mark solved if I've answered your question, vote for it as helpful to help other users find a solution quicker
This posting is provided "AS IS" with no warranties, and confers no rights.
My Blog |
Team Blog | @Twitter
| Facebook
Author: SQL Server 2012 AlwaysOn -
Paperback, Kindle

Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection

"[DBNETLIB] Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection"
After patches applied on patch Tuesday the database reports the above error.
All accounts are domain accounts and SQLServer uses Windows auth.
DCDIAG show no errors
All servers and DC have been restarted,
Message in db log confirms the connection is being denied due to trust.
Event log shows same rejection
Protocols enabled: named pipes, tcpip, memory
TESTS:
PortQry: "
TCP port 1433 (ms-sql-s service): LISTENING"
Connect with domain admin accounts works from multiple clients systems to DB.
Cannot connect with newly created domain admin account
Can connect if new admin account connect to server in terminal server session and uses UDL wizard or any other tool including isql.
New standard user also fails to connect.
NOTES:
I removed the SSL patch and the IE security update to see if that was an issue.
¯\_(ツ)_/¯

Has someone left the company or has an account of some nature been dropped/replaced?
Please click "Mark As Answer" if my post helped. Tony C.
Hi Tony,
Srry but No. We just installed the monthly updates.
I went back and found I had missed removing a patch. I missed the rollup for Windows Server 2003:
Event Type: Information
Event Source: NtServicePack
Event Category: None
Event ID: 4382
Date:  3/12/2015
Time:  12:26:04 PM
User:  NETTEST\admin
Computer: DATA1
Description:
Windows Server 2003 KB954920 was removed from your computer, and the previous Windows Server 2003 configuration was restored.
After I removed that is still didn't work but after about five minutes it started working.
I guess I ned to report that to MS after I research what might be changed to make the patch work.
Every time I get stuck and ask for help it seems to be just before I stumble on the solution.
Thanks for replying.
Well - maybe this will help someone else.
Thanks again for replying Tony
¯\_(ツ)_/¯

Reports successfully execute but generate a login failed for user 'sa' err

I am running Crystal Reports Server XI R2. Classic ASP is used to generate embedded reports within our application. The crystal reports use ODBC to connect to a SQL Server 2005 database. The reports successfully generate in our Classic ASP application. However in SQL Server 2005, the following error messages are being generated each time a crystal report is ran:
- Login failed for user 'sa'.
- Error: 18456, Severity: 14, State: 8.
We know that we are passing the correct username/password to the crystal reports, becuase they execute successfully.
It appears that when the report is called, Crystal Reports appears to conect to SQL Server using a username/password that we didn't provide it at execution time, this fails and the SQL Server 'login failed for user' is generated. Then it runs the report using the username/password we provide and it successfully generates a report.
I have ran Profiler against the SQL Server Database and the 'Login failed for user 'sa' ' errors have a ApplicationName of either 'Seagate Crystal Reports' or 'Crystal Reports'. Therefore I know it is Crystal Reports generating these errors in SQL Server.
Does anyone have any ideas on how to stop these SQL Server 'Login failed for user 'sa' ' errors being generated?

What happens if you use Profiler when running the report using Crystal Report Designer?
If the report is ran through Crystal Report Designer, NO 'Login failed for user' error messages appear in profiler. Everything looks ok when ran in Designer.
Also, need to know what patch level you are on?
We are running Crystal Reports Server XI Release 2, Version: 11.5.8.8265
No additional patchs have been applied since Crystal Reports Server was installed.
We may try the SA account if one of the connections fail to log on with the credentials you provided. Verify the user you logged on with has rights to all tables.
The reports were running through our application using the SA account. The SA account has permissions to these tables. The reports do generate results and appear perfectly fine in the application. The issue is that when our application requests the report from Crystal Reports Server. Crystal Reports Server delivers the correct report to our application. However during the process to generate the report, 'login failed for user 'sa' ' errors are being generated in SQL Server 2005.
Also, I have tried creating a completely new SQL user called 'crystaluser'. I ran the report using Crystal Report Designer and used the crystaluser logon and saved the report. Then I ran the same report through our application. SQL Profiler will then display 'login failed for user 'crystaluser''.
Its seems as though Crystal Reports Server is first executing the report using the default SQL user saved with the report, but is either sending a blank password or no password at all. This generates the 'login failed for user' in SQL Server 2005. But it then uses the SQL username/password my application gives it and successfully generates the report. Of course this is only speculation.

Cannot open database "ReportServer" requested by the login. The login failed. Login failed for user 'USER LOGON'

I want to grant permissions to all domain users to view reports on our Report Server. Domain users are able to access our Report Server URL and folder, but when they click on a report item they get an error message:
"Cannot open database "ReportServer" requested by the login. The login failed. Login failed for user 'USER LOGON'"
I'm using windows authentication and configured the local service account in SSReportS Config Manager as the credentials to connect to the Report Server DB.
Can someone please help how I should properly do this step by step to give all domain users permissions to view a report in SSRS?
Thanks much! - Rookie DBA

Hi IWAR,
The error message "Cannot open database "ReportServer" requested by the login. The login failed. Login failed for user 'USER LOGON'" means the user 'USER LOGON' does not have permissions to access the "ReportServer" database.
To fix this issue, please verify that the user has a valid database user login. For more details, please refer to the following steps.
In SQL Server Management Studio, open Object Explorer and expand the Databases folder.
Expand the database in which to create the new database user.
Right-click the Security folder, point to New, and then click User.
On the General page, enter a name for the new user in the User name box.
In the Login name box, enter the name of a SQL Server login to map to the database user.
Click OK.
Reference:
http://technet.microsoft.com/en-us/library/ms156468(v=sql.105).aspx
Hope this helps.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

Sql Server 2012 Login Failed for user "NT Authority\System"

I have installed SQL Server on a new server. I have been getting the following error on each of the database in it.
Login failed for user 'NT AUTHORITY\SYSTEM'. Reason: Failed to open the explicitly specified database 'ABC'. [CLIENT: xxx.xxx.xxx.xxx]
Here is some information on the instance:
1) Default instance
2) SQL Server, Sql Server Agent, Sql Server Reporting services are running / log on using a domain service account.
3) Sql Server Browser is disabled.
4) SQL Server VSS Writer is running / log on as Local Service.
5) NT AUTHORITY\SYSTEM does exists in Login with just public server roles.
I ran a trace on login failed and I get:
ApplicationName: Microsoft Windows Script Host
and it runs every 15 minutes.
Help please?

Hi,
The error was thrown when the SCOM components connected to the backend SCOM databases.
You can specify a domain account, grant it the sysadmin role and the error should be gone.
Also, see the replies in your previous thread:
http://social.technet.microsoft.com/Forums/en-US/23f6b6cb-ec41-4117-8613-26d24c948827/login-failed-for-user-username-reason-failed-to-open-the-explicitly-specified-database
Thanks.
Tracy Cai
TechNet Community Support

Unhandled Exception Error - Login Failed for User

Hello,
I am receiving an error when I run my application stating “Unhandled exception has occurred. If you click continue, the application will ignore the error………..Login failed for MyUser.
When I click the Continue button the application runs and seems to work properly. This application used to run without receiving the error and I did not make any changes. I have another application that is using basically the exact same code and does not
receive the error. The only difference is the application is querying a different DB but using the exact same connection string. The error only occurs when I run the exe file created from the build. When I run (debug) the application from within the VS 2013
IDE I do not receive the error.
Here are the details to the error message:
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.Data.OleDb.OleDbException (0x80040E4D): Login failed for user 'jobrunner'.
   at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection)
   at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
   at System.Data.ProviderBase.DbConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionInternal.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
   at System.Data.OleDb.OleDbConnection.Open()
   at System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataTable[] dataTables, Int32 startRecord, Int32 maxRecords, IDbCommand command, CommandBehavior behavior)
   at System.Data.Common.DbDataAdapter.Fill(DataTable dataTable)
   at LoanOrig_FDIC_Codes.DataSet1TableAdapters.I_LoansTableAdapter.Fill(I_LoansDataTable dataTable) in u:\Visual Studio Projects\LoanOrig_FDIC_Codes\LoanOrig_FDIC_Codes\LoanOrig_FDIC_Codes\DataSet1.Designer.cs:line 1668
   at LoanOrig_FDIC_Codes.Form1.Form1_Load_1(Object sender, EventArgs e) in u:\Visual Studio Projects\LoanOrig_FDIC_Codes\LoanOrig_FDIC_Codes\LoanOrig_FDIC_Codes\Form1.cs:line 152
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ContainerControl.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
LoanOrig_FDIC_Codes
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///U:/Visual%20Studio%20Projects/LoanOrig_FDIC_Codes/LoanOrig_FDIC_Codes/LoanOrig_FDIC_Codes/bin/Debug/LoanOrig_FDIC_Codes.exe
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34238 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34234 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
System.Data.DataSetExtensions
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Data.DataSetExtensions/v4.0_4.0.0.0__b77a5c561934e089/System.Data.DataSetExtensions.dll
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
System.Transactions
    Assembly Version: 4.0.0.0
    Win32 Version: 4.0.30319.34209 built by: FX452RTMGDR
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
I'm not sure what the JIT debugger is but to my knowledge my other apps are not using that. The production username and password are correct in the connection string so I'm not clear why I am receiving this error especially since I'm not receiving the
error on my other application. I have also attached the code just in case it is needed. Any assistance will be greatly appreciated. Thank you.
Dave
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
using ClosedXML.Excel;
using DocumentFormat.OpenXml;
using System.IO;
namespace LoanOrig_FDIC_Codes
public partial class Form1 : Form
SqlCommand sqlCmd;
SqlDataAdapter sqlDA;
DataSet sqlDS;
DataTable sqlDT;
SqlCommand sqlCmdCnt;
public Form1()
InitializeComponent();
//BEGIN BUTTON LOAD CLICK EVENT
private void btnLoad_Click(object sender, EventArgs e)
string sqlCon = "Data Source=FS-12345; Initial Catalog=ExtractGenerator; User ID=MyUser; Password=MyPW";
//Set the 2 dateTimePickers to today's date
DateTime @endDate = End_dateTimePicker.Value.Date;
DateTime @startDate = Start_dateTimePicker.Value.Date;
//Validate the values of the 2 dateTimePickers
if (endDate < startDate)
MessageBox.Show("End Date must be greater than or equal to the Start Date OR Start Date must be less than or equal to the End Date ", "Incorrect Date Selection",MessageBoxButtons.OK,MessageBoxIcon.Error);
//Reset both dateTimePickers to todays date
Start_dateTimePicker.Value = DateTime.Today;
End_dateTimePicker.Value = DateTime.Today;
return;
//End of date validation
string sqlData = @"SELECT AcctNbr,
CurrAcctStatCD,
Org,
MJAcctTypCD,
MIAcctTypCD,
NoteOriginalBalance,
ContractDate,
FDICCATCD,
FDICCATDESC,
PropType,
PropTypeDesc
FROM I_Loans
WHERE CAST(ContractDate AS datetime) BETWEEN @startdate AND @enddate ORDER BY ContractDate";
SqlConnection connection = new SqlConnection(sqlCon);
SqlCommand sqlCmd = new SqlCommand(sqlData, connection);
sqlCmd.Parameters.AddWithValue("@startDate", startDate);
sqlCmd.Parameters.AddWithValue("@endDate", endDate);
sqlDS = new DataSet();
sqlDA = new SqlDataAdapter(sqlCmd); //SqlAdapter acts as a bridge between the DataSet and SQL Server for retrieving the data
connection.Open();
sqlDA.SelectCommand = sqlCmd; //SqlAdapter uses the SelectCommand property to get the SQL statement used to retrieve the records from the table
sqlDA.Fill(sqlDS, "I_Loans"); //SqlAdapter uses the "Fill" method so that the DataSet will match the data in the SQL table
sqlDT = sqlDS.Tables["I_Loans"];
//Code section to get record count
sqlCmdCnt = connection.CreateCommand();
sqlCmdCnt.CommandText = "SELECT COUNT(AcctNbr) AS myCnt FROM I_Loans WHERE ContractDate BETWEEN @startDate AND @endDate";
sqlCmdCnt.Parameters.AddWithValue("@startDate", startDate);
sqlCmdCnt.Parameters.AddWithValue("@endDate", endDate);
int recCnt = (int)sqlCmdCnt.ExecuteScalar();
txtRecCnt.Text = recCnt.ToString();
btnExport.Enabled = true;
//End of code section for record count
connection.Close();
dataGridView1.DataSource = sqlDS.Tables["I_Loans"];
dataGridView1.ReadOnly = true;
//Reset both dateTimePickers to todays date
Start_dateTimePicker.Value = DateTime.Today;
End_dateTimePicker.Value = DateTime.Today;
//END BUTTON LOAD CLICK EVENT
//BEGIN BUTTON EXPORT CLICK EVENT
private void btnExport_Click(object sender, EventArgs e)
SaveFileDialog saveFD = new SaveFileDialog();
{ //ClosedXML code to export datagrid result set to Excel
string dirInfo = Path.GetPathRoot(@"\\FS-03250\users\dyoung\LoanOrig_FDIC_Codes");
if (Directory.Exists(dirInfo))
var wb = new XLWorkbook();
var ws = wb.Worksheets.Add(sqlDT);
ws.Tables.First().ShowAutoFilter = false;
//SaveFileDialog saveFD = new SaveFileDialog(); //I moved this variable to the top of the btnExport code block so that the variable will be available thru the entire scope of that code block
saveFD.Title = "Save As";
saveFD.Filter = "Excel File (*.xlsx)| *.xlsx";
saveFD.FileName = "LoanOrig_FDIC_Codes_" + DateTime.Now.ToString("yyyy-MM-dd");
if (saveFD.ShowDialog() == System.Windows.Forms.DialogResult.OK)
Stream stream = saveFD.OpenFile();
wb.SaveAs(stream);
stream.Close();
else if (saveFD.ShowDialog() == System.Windows.Forms.DialogResult.Cancel)
MessageBox.Show("Save file operation has been canceled", "Save As Canceled", MessageBoxButtons.OK, MessageBoxIcon.Stop);
return;
//End of ClosedXML code
MessageBox.Show("File has been exported to " + saveFD.FileName, "File Exported", MessageBoxButtons.OK, MessageBoxIcon.Information);
//MessageBox.Show("File has been exported to U:\\LoanOrig_FDIC_Codes", "File Exported", MessageBoxButtons.OK, MessageBoxIcon.Information);
else
MessageBox.Show("Drive " + saveFD.FileName + " " + "not found, not accessible, or you may have invalid permissions");
//MessageBox.Show("Drive " + "U:\\Visual Studio Projects\\LoanOrig_FDIC_Codes" + " " + "not found, not accessible, or you may have invalid permissions");
return;
//END THE SAVE AS PROCESS
//END BUTTON EXPORT CLICK EVENT
private void Form1_Load(object sender, EventArgs e)
//Set dates to be today's date when the form is openend
Start_dateTimePicker.Value = DateTime.Today;
End_dateTimePicker.Value = DateTime.Today;
private void Form1_Load_1(object sender, EventArgs e)
// TODO: This line of code loads data into the 'dataSet1.I_Loans' table. You can move, or remove it, as needed.
this.i_LoansTableAdapter.Fill(this.dataSet1.I_Loans);
private void iLoansBindingSource_CurrentChanged(object sender, EventArgs e)
private void btnExit_Click(object sender, EventArgs e)
this.Close();
David Young

In SQL you have a login which allows access to the server but you must also have permissions to access each database that you will use (including Master). So I would verify that your user also has the necessary permissions on the database itself and
not just the SQL instance. The error you're getting is from SQL saying that the user doesn't have permissions. If it works for 1 DB but not the other on the same SQL instance then it is likely a missing permission on the DB itself.
I should note that you have a hard coded conn string in your code but the error is for a different user. I'm assuming that you simply posted it there for convenience and that you changed the values to obscure the data. If you are actually getting
the info from your config file then verify the connection string is correct. Also be sure to not use Integrated Security since it appears that you are using SQL authentication.

Login failed for user 'NT AUTHORITY\ANONYMOUS

Hi All
I have already gone thru lot of links, So appreciate if i can have some solution
I have 3 servers A, B and C . A and B are in same domain and C is in different domain. and I am sysadmin in all 3 servers and all have trusted connection with each other
1. All have tcp and named pipe enable
2. All 3 servers and all services including browser are up and running
3. When i connect any sql server from any Server using SSMS i am able to connect and (net_transport, auth_scheme = TCP , NTLM).
Now i create linked server at server B to Server C (C domain is different than A and B). When i login on Server B and try to run query on C its working fine. But after remote login to server A and connect sql server at B using SSMS when
i expand linked server to c i cant see databases and query is giving error "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON'"
I also tried to connect to all 3 server in ssms using forced named pipes but i am getting below error
"provider named pipes provider error 40 - Could not open connection to sql server"
My question :
1. I have to use domain account to use linked server from server A to connect SQLserver B to server C, How this can be done is this related to Double hop ??
2. Why i cant connect using forced Named pipe to any server using SSMS except local host
Thanks Saurabh Sinha http://saurabhsinhainblogs.blogspot.in/ Please click the Mark as answer button and vote as helpful if this reply solves your problem

Hello,
First, it is possible to use Kerberos delegation across trusted domains.
net_transport, auth_scheme = TCP , NTLM
This means something isn't correctly setup as you're defaulting back to NTLM. This should read Kerberos if your SPNs were setup correctly and authenticated properly. Check the SPNs and service accounts.
http://technet.microsoft.com/en-us/library/cc280744(v=SQL.105).aspx
1. I have to use domain account to use linked server from server A to connect SQLserver B to server C, How this can be done is this related to Double hop ??
To go across domains I'm not entirely sure on that part, but I can say it'd probably be easier if you did use a domain account as the service account.
2. Why i cant connect using forced Named pipe to any server using SSMS except local host
I'm not quite sure what you mean here. You can't connect through NP? Why the need for NP at all?
Sean Gallardy | Blog |
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Login failed for user 'IIS APPPOOL\DefaultAppPool' on SQL Express 2012

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