Exchange 2013, clients prompting for password

Exchange 2013 SP1 on Server 2012 R2 both fully patched. Exchange 2013 is a single server will all roles installed. There is also an Exchange 2007 (fully pathed) as we are in the process of migrating the users.
Setup legay.company.com points to Exchange 2007 and mail.company.com point to Exchange 2013
Security on Exchange 2013 set to NTLM for External and Internal.
Mobile access works for user on Exchange 2013 and Exchange 2007
Client with Mailbox's on Exchange 2013 using Outlook 2010 - 2013 internally and externally getting prompted for username and password.
Clients with Mailbox's on Exchange 2007 ok.
Checked IIS, autodiscover, EWS and Kernal mode is set.
Nothing showing in the Event Logs.

Hi Skynite,
I have met this issue before, I recommend you try the following method and check the result:
In this situation, you must set LmCompatibilityLevel on the client to a value of 2. To do this, follow these steps.
Click Start, click Run, type
regedit in the Open box, and then press ENTER.<u5:p></u5:p>
Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\
In the pane on the right side, double-click lmcompatibilitylevel.<u5:p></u5:p>
In the Value data box, type a value of 2 and then click
OK.<u5:p></u5:p>
Exit Registry Editor.<u5:p></u5:p>
Restart your computer.<u5:p></u5:p>
More details about this Key, please refer to the following link:
http://technet.microsoft.com/en-us/library/cc960646.aspx
Best regards,
Niko Cheng
TechNet Community Support

Similar Messages

Outlook 2007 Clients Prompt For Password When Opening

I am running Exchange 2007 Standard. New outlook 07 clients prompt for password each time it is opened. Older clients do not prompt for password. Is there any way for outlook 07 to not prompt for password? Users already logged into domain, should their credentials not be recognized automatically like with outlook 03?

This fixed it for me.
http://social.technet.microsoft.com/Forums/en-US/exchangesvrgeneral/thread/383d130e-869f-4fce-9502-8b340904b0ba/#636c5a5e-c61f-414b-8e85-562c888b83cc
Quote:
Same problem here after restarting SBS 2008 for upgrades (annoying login box popping up after starting Outlook and also other times).
This solved the problem for me:
IIS Mgr on SBS 2008 / - / SBS Web Applications /
- SSL Settings / Client certificates - Stop / Start web server after changing settings:
Autodiscover: Ignore
EWS: Ignore
OAB: Accept *)
owa: Accept *)
Rpc: Accept *)
RpcWithCert: Accept *)
*) All these have to be Accept to get rid of login box
Best regards
Bjorn
I was having the same issue. SBS2008, Exchange 2007. Only being prompted in Outlook 2007 clients. Tried a lot of different things to fix it, but none worked. This started happening after a round of security updates but I could not find KB2412171 on the list.

Outlook 2013 repeatedly prompts for password when connecting to Exchange Server 2010

I am trying to configure Outlook 2013 on a Windows 8.1 Pro client. The exchange server is 2010 SP1 and works just fine with OL 2010.
When I configure OL 2013, the configuration prompts for a password for the account repeatedly with both NTLM and Basic Authentication chosen. OL 2013 tries to connect and then it disconnects with the password for the account repeatedly prompted. When
the credentials are entered, the prompt reappears immediately.
Might anyone help?
Many thanks in advance
Shuvo

Hi Shuvo,
Please check whether this user can access mailbox in OWA. Please manual setup this account in Control Panel to have a try. Make sure your
Server name and User name are configured correctly. If you are configure the account in internal domain environment, please click
More Settings, set Negotiate Authentication in
Security tab and uncheck Connect to Microsoft Exchange using HTTP in Connection tab.
If there is any updates, please feel free to let us know.
Thanks,
Winnie Liang
TechNet Community Support

Outlook 2013 / Exchange 2010 constantly prompting for password

I as well as many users keep getting prompted for User/pass in outlook. This usually happens when I go from LAN to WIFI or from office to home. For example, If I close my laptop (not shut down) and head home then log back in and connect to my
VPN I usually get prompted for my user/pass for outlook. I type the correct user/pass but it does not accept and immeadiatly prompts for me to re enter. If I close down Outlook and re open the issue is fixed however this is not fixing this issue
and the owner of the company is receiving this error as well. I would like to find a solution so that either it does not prompt and automatically updates once it is reconnected with the network via VPN.
Any suggestions?
Thank you

I as well as many users keep getting prompted for User/pass in outlook. This usually happens when I go from LAN to WIFI or from office to home. For example, If I close my laptop (not shut down) and head home then log back in and connect to my
VPN I usually get prompted for my user/pass for outlook. I type the correct user/pass but it does not accept and immeadiatly prompts for me to re enter. If I close down Outlook and re open the issue is fixed however this is not fixing this issue
and the owner of the company is receiving this error as well. I would like to find a solution so that either it does not prompt and automatically updates once it is reconnected with the network via VPN.
Any suggestions?
Thank you
Outlook is simply not good at that with the existing protocols in Exchange 2010. Exchange 2013 uses MAPI over HTTP which may make that experience better.
Switching networks with Outlook open is typically not a good user experience.
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

MAPI over HTTP not working correctly, Outlook 2013 clients prompting for credentials during profile creation or opening depending on security of virtual directory

ENVIRONMENT
-1 Exchange 2013 SP1 CU7 server with all roles that is also a hybrid server with Office 365 tenant, mailboxes are all on premise only LYNC online is being utilized right now.
-Exchange 2013 public folders
-Mix of Outlook 2013 SP1 and Outlook 2010 SP3 clients all fully update to day as of Feb 2015
Outlook anywhere is working perfectly across all clients both internally and externally using autodiscover. Both Outlook 2013 and 2010 clients can open the program and create a profile automatically via autodiscover and no additional logon prompts
are seen.
We set the internal and external mapi virtual directory URLs to a valid URL that also matches the Exchange 2013 SSL certificate. We set the security to ntlm, negotiate on the mapi virtual directory. We reset IIS and enabled mapi over http in
the org config. We run in to problems here.
Outlook 2010 clients appear to be working fine. We can create a new profile and open and close Outlook without any logon prompts and verify that MAPIHTTP and Negotiate are used to connect to Exchange.
Outlook 2013 clients are having problems. As soon as we try to create a profile it says your administrator has made a change that requires you to restart outlook and then a windows logon prompt appears. If we authenticate Outlook will open and connect.
This logon prompt should not occur. We can confirm that it is connecting via MAPI HTTP and Negotiate.
If we set the mapi virtual directory to NTLM only then a logon prompt also appears during every open of Outlook 2013. We can confirm that it is trying to connect with MAPIHTTP via NTLM in the outlook connection test screen.
I do not understand this behavior by Outlook 2013 which was supposed to be designed with MAPI HTTP in mind. I would think the same issues would occur with Outlook 2010 but they do not. I am not sure how to resolve this and I am looking for help.

I have the same problem. Exchange and Outlook are both up to date. After creating a new profile Outlook prompts for username/password. A lot of users also get this prompt while
working - the profiles have been "migrated" from Exchange server 2010. <o:p></o:p>
Niko, as i can see in your screenshot you do not have Mapi over HTTP enabled. Why? You can change settings in the security tab – if you have Mapi over
HTTP enabled all options are grayed out (please correct me if I
am wrong):
This is a very annoying thing – does anybody else have the same problem?
Any suggestions on this?
Marc

Why does Outlook keep prompting for password

We have seen our community members ask questions about Outlook keeps prompting for credentials many times. This issue could be caused by numerous reasons. Below is a list of the most common reasons for this problem:
Outlook is configured to prompt you for credentials
Incorrect password cached in credential storage
Required Authentication Settings for outgoing server and incoming server
Outlook Anywhere is not configured to use NTLM Authentication
Corrupt Outlook profile
Slow or unstable network connection
Antivirus programs
Shared calendars
Outlook is configured to prompt you for credentials
If you are using an Exchange account, there is a setting in your Outlook profile to always prompt for logon credentials. To find the setting, please follow:
1. In Outlook 213, go to File tab > Info >
Account Settings > Account Settings…
2. Highlight your Exchange account and click Change button.
3. Click on More Settings button.
4. Select the Security tab.
5. Under the User Identification, make sure the “Always prompt for logon credentials” option is not selected.
If you are using other types of email, please make sure you have ticked the option “Remember password”.
Incorrect credential cached in Credential Manager
Your Windows system stores user credentials on your computer. If the cached credentials are incorrect, you will be prompted for password. This issue usually happens after the password for your domain user account is changed. Before your password changed,
you saved your credentials. The stored credentials are not overwritten when Outlook triggers the authentication prompt even if you enable the Remember my credentials option.
To fix this issue, you need to remove the corrupted credentials, follow these steps:
Click Start, click Control Panel, and then click Credential Manager.
Note If View by is set to Category, click User Accounts first, and then click Credential Manager.
Locate the set of credentials that has Outlook in the name.
Click the name to expand the set of credentials, and then click Remove from Vault.
Repeat step 3 for any additional sets of credentials that have the word Outlook in the name.
Required Authentication Settings for outgoing server and incoming server
Different email provider may need different authentication settings. Please make sure you have set the server settings correctly. You can contact your email provider to gather the information.
In general, we select the “My outgoing server (SMTP) requires authentication” option and the first bullet “Use same settings as my incoming mail server”.
In addition, click on the Advanced tab and check if you have enter the correct Server Port Number and select the correct encrypt type. Below is a screenshot for an IMAP account:
Outlook Anywhere is not configured to use NTLM Authentication
The Outlook Anywhere feature allows you to access your Exchange account remotely from the Internet when you are working outside your organization's firewall.
When using Outlook Anywhere to connect to your Exchange server, we need to choose
the authentication method among Basic Authentication, NTLM Authentication and Negotiate Authentication. The difference among them is the way that the passwords are sent when connecting to the server. With Basic Authentication,
the password is sent in clear text. Using NTLM Authenticationcan significantly reduce the number of password prompts.
To check the authentication setting, please go to File > Account Settings > Account Settings,
select the Exchange account, and then click
Change. In the Change Account wizard, click
More Settings, and then click the Connection tab. Click the Exchange Proxy Settings button and now, you can see the settings under
Proxy authentication settings. Try to change the authentication to
NTLM Authentication and then check the issue again.
Slow or unstable network connection
If your network connection is slow or unstable, Outlook may lose connection to the mail server. When Outlook try to reconnect, it will prompt for the credentials. To verify this, please switch to a stable network environment and then check if this issue
persists.
Corrupt Outlook Profile
Corrupt profile may cause Outlook to no longer remember your password. Please try to create a new mail profile in Control Panel and reconfigure your email account in the new profile to fix the issue. To create a new mail profile, you can refer:
http://support.microsoft.com/kb/829918
Antivirus software
Antivirus software usually integrates into your Outlook and it may cause some conflicts. Try to temporarily turn off your antivirus software to check if the issue will be gone.
Shared Calendar
Shared calendars can impact the user credentials, this issue may also occur if you have shared calendars opened in Outlook. You can try to unselect the shared calendar to check the result. It’s recommended to not open the shared calendar unless you want
to view them.
If you have any comments, welcome to post in the forum. Thank you.
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

Nope...
I went through point by point by point, top to bottom, checking and verifying every single item as a possible cause for why my system (Outlook 2013 running on Windows 8.1 and connecting to Exchange 2010) insists on prompting me for my password every single
time I start Outlook. None of the solutions worked, my system still prompts me. I don't even have to supply a password. When the prompt dialog appears, I just cancel it. Within a few seconds, the bottom Outlook status bar changes to
"Need Password" with a key icon to the left. Then I just click on that message and immediately Outlook connects to Exchange.
The freaking software is BROKEN! Period.

Outlook 2010 prompting for password

Hi everybody. I ran into an issue yesterday morning where at one of our sites Outlook 2010 has started prompting for a username and password. If the user types in their username as "MYDOMAIN\myuser" and their password, it lets them in but the Exchange
status shows as "Disconnected". If the user sets their username to just "myuser" without the domain on the front it lets them in and works as expected until they close Outlook, at which point they have to enter their credentials again.
The strangest thing about this is that it's only affecting one of our sites and only Outlook 2010. Users running 2007 and 2003 do not have the problem and only users at this physical location have the problem. Does anybody know where I can look? I have tried
clearing stored credentials, created new Outlook profiles and reset passwords. None of these things seem to have had any effect.

After changing a ton of outlook settings, deleting the user's account profile on outlook, deleting their domain profile from the effected computer, trying to fix the registry, deleting stored credentials, etc.... almost everything else I found something
that FINALLY worked for me after over a year and about 12 different users being effected.
in the past I would just give up after much frustration and upgrade them to Office 2013 but that gets very expensive especially when I have 57 other users that could potentially run into the same issue.
Here is what I did.
- back up the user's data. log out and log into local admin
- delete the user from the local registry
- repair Office 2010 through control panel/programs, restart
- have user log back in with their credentials to make new local profile. recover their backed up documents. log out and log back in as local admin.
- install hotfix KB2597011
- restart computer
- install hotfix KB2583935
-restart computer
- log in, open outlook and setup user's account.
Some of these steps may be skipped as I didn't find the hot-fixes until after I repaired office, however I am just providing what I did in the process to end up with a working outlook again.
Some things unique to my situation that may or may not help.
- I noticed some of the computers have Office2010 32bit installed on 64 bit machines.
- Some of the users were swapped over using a profile mover program when we moved to a domain environment.
- For me this always happens when the user's passwords expire and they have to log in to the portal to change it. Then outlook starts with the repeated prompt for passwords. It is always computer specific and nothing but what I provided above has worked
other than re installing windows 7 and then office or upgrading to office 2013.

Internally installed Outlook 2010 prompts for password using external smtp email as user id

Hi,
After exchange 2007 to exchange 2013 migration all internally connected outlooks 2010 (xp, vista, win7, win8) prompt for password using external email user address as user id.
Below some of my settings and informations.
Internal domain: contoso.local
External domain: contoso.com
Exchange is NOT published to Internet at all.
Internally OWA, ECP runs OK.
Test-OutlookWebservices with user.name(at)contoso.local or contoso\user.name - runs OK
Test-OutlookWebservices with user.name(at)contoso.com - fails
Common scenario - (all happens internally):
1.User starts Outlook
2.Outlook prompts for password with default user.name(at)contoso.com as id
- while user tries to authenticate using his domain password - outlook re-prompts
- while user changes id from user.name(at)contoso.com to user.name(at)contoso.local or contoso\user.name and authenticates - Outlook connets to exchange and till next Outlook it runs ok.
I am bus with that issue since 1 week and I am already bit tired. I was looking for answer via gogle/bing and went through tons of "Outlook perpetually prompts for password" threads and blogs. No success.
Do you have any clue where else start to play with that?

Hi,
Thank you for answer - no luck
>NExt og to Connection tab - Exchange Proxy settings - Proxy authentication settings - is it set
>to NTLM or Basic?Give it a try on one of them.(if set to NTLM change to basic and vise versa).
On both settings the same results - Outlook is prompting for password.
>Another thing you could try is og to Internet Explorer - tool -internet options- Security - click local
>intranet - >custom Level and scroll Down to bottom and put check mark on automaticly logon
>With current username >and password.
>Do this on Trusted sites as well,if Your domain is listed under trusted sites
The same results - Outlook isprompting for password.
Should not be some kind of mapping set somehow in AD between user.name(at)contoso.com and user.name(at)contoso.local?
I have impresion that issue is somewhere in the fact that outlook is trying to connect using contoso.com instead of contoso.local in ntlm credentials.

Outlook 2013 continually prompting for credentials on new domain

Greetings,
I first posted this in the Office365 community forums and was directed here.
We are experiencing an issue where Outlook 2013 (Office365 install) is prompting for user credentials every time it is opened, despite checking the option to remember the credentials. So far we've tried a number of troubleshooting steps, but nothing
has resolved the issue. The issue is happening to multiple users on multiple computers.
We are running:
Outlook 2013 (32-bit) (Office 365 install)
Windows 7.1 Professional (x64)
Computer is domain joined (Server 2012 R2 Domain Controllers)
Mail is hosted on Office 365
We've tried:
Clearing the Outlook and Office credentials from Credential Manager.
Removing the mail profile and the saved credentials from Credential Manager, then re-adding the mail profile.
We've tried adding the mail profile with both a manual configuration of the server settings and allowing Outlook to automatically configure them.
Ensuring that "Always prompt for logon credentials" is unchecked.
Setting "Always prompt for logon credentials" to disabled via registry (see
http://support.microsoft.com/kb/2984912)
Confirming that Autodiscover is able to connect (http://www.microsoft.com/en-us/showcase/details.aspx?uuid=e8db028a-06f4-45fb-aff1-e8ac896d29c5)
Deleting the Autodiscover.xml file so that it is recreated
Doing an Online Repair of Office 365.
Reinstalling Office 365
Recreating the user's Windows profile.
Ensuring all applicable Windows updates and Office updates are installed.
Changing Proxy Authentication from Basic to NTLM (will not connect with NTLM)
The machines this is occurring on are on a new domain that we are in the process of setting up. The user accounts are still on the old domain. Cross-domain trusts are set up in both directions and all other services are working fine. GPO settings across
both domains have been set up to be identical. The issue occurs on computers that were built directly on the new domain as well as computers built on old domain and migrated over. Machines that are not domain joined or are still on the old domain are not experiencing
the issue.
If any of you could provide any insight or other steps that we could try I'd greatly appreciate it.
Thanks

Hi,
For the issue that Outlook keeps prompting for password, I usually suggest users follow the steps in this article below, but apparently you have tried almost all the steps:
Why does Outlook keep prompting for password
I've seen some similar issues that were caused by an old "network driver", which for some reason caused a wrong server name to propagate up from the network layer to the application layer. Updating the network driver would fix the issue, I'm
not sure if this works in your scenario though.
Regards,
Melon Chen
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs. Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

Office 365 Outlook prompts for password whenever outlook is restarted.

Hello Folks,
We have recently deployed Office 365 (We had Kerio email system previously, But we did not do a migration).
The problem is
Office 365 Outlook prompts for password whenever outlook is restarted
Tried the following workarounds,
1) Logon network security under More
Settings on the Microsoft Exchange Security tab
is set to a value other than Anonymous Authentication
2) Tried removing the Generic Credentials from Credential manager.
The is issue is only for some users (Majority).
(OS Platform: Windows 7/Windows 8).
Thanks in Advance
Murugupandian Pandi

The first thing I would recommend to do is to make sure that your install missing Outlook updates and try again.
I would also recommend asking them in this forum: https://social.technet.microsoft.com/Forums/en-US/home?forum=outlook
This posting is provided AS IS with no warranties or guarantees , and confers no rights.
Ahmed MALEK
My Website Link
My Linkedin Profile
My MVP Profile

RDP prompting for password

I am trying to setup an rdp connection that will connect to a windows
2003 domain server without being prompted for credentials. The server however is constantly prompting me for a password.
So far have checked the following
1) Group Policy in "Administrative Templates\Windows Components\Terminal
Services\Encryption and Security\Always prompt client for password upon connection" is not configured.
2) The registry key "fPromptForPassword" in both DefaultUserConfiguration
and WinStations is set to 0.
3) Credentials are stored in the local credentials cache
I presume the problem is that on the RDP-TCP properties of
the server I am trying to connect to, "Always prompt for password" is ticked
and is also greyed out so I am unable to change it.
Can anyone tell me how this box is ticked and greyed out given the
above settings and if this will be the cause of my issue.
Thanks

Hi,
It sounds like the setting is configured via group policy. Please log on to the server as a domain admin and use gpresult to check the group policy settings that are being applied using the following commands:
gpresult /z>gpresult.txt
notepad gpresult.txt
Thanks.
-TP

Outlook 2010 keeps prompting for password

Hi,
We use Exchange 2008 and Outlook 2010. For some reason, Outlook 2010 keeps prompting for password. My use entered the password and checked "Remember Password" box, but next morning when he logged in, he still got the prompt.
I removed the Outlook credential for Outlook listed under Password Credential in Control Panel, but still no help.
Please advise!
Thanks in advance!
Grace

Hi Grace
1. Open Outlook 2010. Click File>Account Settings>Account Settings.
2. Click the E-mail tab, click the Exchange Online mailbox, click Change…
3. Click More Settings…. Click the Security tab, make sure the Always prompt for logon credentials box is unchecked.
Please mark it answer if it helps you solving your problem
Amit Kotha

I cannot download an app from the app store, it keeps loading until it says "You have already purchased this app so it will be downloaded no at no additional charge", and then it prompt for password and I input it after which nothing happens.

I cannot download an app from the app store, it keeps loading until it says "You have already purchased this app so it will be downloaded no at no additional charge", and then it prompt for password and I input it after which nothing happens.
I know my icloud has record of my installing this app before, but that was the first install that was failed during that time some other apps also keeps loading without respond whey they updated itself, and this app didn't install before I restart the device. But I don't see this app on my device after I restarted the device so it should have been installed on my device. It seems icloud has created some kind of dead loop that makes it not able to get the correct status about this app on my device.
I have no problem install this app on my other device (iPad) with the same account, but just fail on my iPhone. And it just fine installing other apps...... What happened !!?? @@
Please help !!!

Someone help! I dont know how to do this and please put the words into an easy way to understand because im young...

XFA Pdf form call secure webservice without prompt for password

Hi,
We are using XFA forms within the company. We have created many (400+) interactive forms with fields to fill manually.
Now the business would like to lookup account details. They want user to be able to enter account number and then lookup details through webservice.
The webservice is created on HOST/CICS and in COBOL. We need security on HTTPS and we cannot accept that the user is prompted for password.
Our security department state that normal practice is to use KERBEROS token that gets authenticated later - is that possible with Adobe Reader??
Have anyone developed this functionality within XFA forms and Adobe Reader?
Thanks in advance,
Thomas Groenbaek

Reader can make Web Service calls but the form must be Reader Extended by LiveCycle Server to allow this. It does support secure web service calls but it does uid/pwsd or certificate authentication. Note that the web service can only return simple types. Objects cannot be returned.
Paul

Prompting for password and username only when using dynamic parameters

Post Author: Co3023
CA Forum: Crystal Reports
How do I stop CR XI prompting for password and username only when using dynamic parameters. When no dynamic parameters are used CR XI isn't prompting for the DB user name and password. The report is run from an application which passes the user name and password. I am using Oracle and the problem is both with the native oracle driver and the ODBC RDO driver.

Post Author: jehanzeb
CA Forum: Crystal Reports
I didnt ask you to change it to static I said I took the parameters totally out of the report. Saved it. Then re-enter the dynamic parameters into the report and it worked for me. That might have worked for you, not sure why you changed it to static.
Ok I have just created a quick report using dynamic parameters, it didnt ask me for the username password.
Can you create a sample report - just to test the db? and see if it works? add only 1 or 2 fields in the report, create parameters (dynamic) and see if it works
why don't you embed the username and password in your application, it won't ask for username password then.

Exchange 2013, clients prompting for password

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