Outlook 2010 keeps asking for credentials

Hello,
We have a Exchange 2013 server with outlook 2010 clients wich constanly ask for credentials.
even with the option save credentials on.
The Exchange servers are hosted and the clients are not part of a domain and use Outlook Anywhere.
Outlook 2013 clients do not have this problem.
I tried several things:
-new profile
-rename ProtectSystemProider folder
- dword registry Savecredentials
- removed ProtectSystemProvider registry key
- Removed or edited credential manager accounts
We have this problem on serveral Windows 7 clients and Remote Desktop Server 2008 r2 sessions.
Hope anyone can help me.
gr
Cris

Hi Cris,
Please try to clean up the cached credential in your computer. Then fill in with the format of UPN when it prompted for credentials next time and check the Remember my credential to save it. About how to remove cached credentials, please follow these steps:
1. Launch the Credential Manager from Control Panel > All Control Panel Items > Credential Manager.
2. In the Generic Credentials section you’ll see a setting for [MS Outlook] which will include your SSO details. Click the downward-pointing arrow to the right of that value.
3. In the expand details, click Remove from vault. Then Outlook will no longer have a stored copy of your password.
Regards,
Winnie Liang
TechNet Community Support

Similar Messages

Outlook 2010 + Exchange 2010 keeps asking for credentials - Please Help!

Hello All,
Recently after a Windows Update + restart of my Exchange Server I'm having an issue with Outlook 2010 where it continually asks for credentials. Every 5 minutes or so the credentials popup appears and either typing your password or clicking cancel will make
Outlook work as expected again until the next popup, frequency of popups is about 2-5 minutes give or take. I am using Exchange 2010 on Server 2008 R2 and aside from the popup everything is working as expected. This seems to be effecting almost all users.
Some things I've tried already include:
- Removing any saved credentials on computer
- Removing and recreating Outlook Mail Profiles
- Running "Set-AutodiscoverVirtualDirectory -Identity 'autodiscover (default Web site)' -WindowsAuthentication $true -BasicAuthentication $false" in shell to disable basic authentication for autodiscover
- Running "get-outlookanyhwere | set-outlookanywhere -ClientAuthenticationMethod NTLM -IISAuthenticationMethods NTLM" in shell to ensure that outlook anywhere and IIS are using NTLM authentication
- Ensuring that the OAB folder permissions are set to allow Authenticated Users to Read/Execute
Anyways, if anybody has additional suggestions for me I'd very much appreciate them. Many users are using the Web App for the time being (with no issues) since the credentials popup is too annoying for them.

So I made sure that all of my authentication methods match the settings you linked me and then recycled the app pool you mentioned but am still having the issue.
One thing I noticed is that if a user experiencing the problem types their password into the credentials popup it will keep popping up continuously but if they hit cancel it says "Needs Password" where it would normally say "Connected to Microsoft Exchange"
and if they simply click once where it says "Needs Password" then all of a sudden it switches to "Connected to Microsoft Exchange" again and they no longer see the popup until Outlook is restarted.
Just to verify I have the proper settings now this is what shell returns:
[PS] C:\Windows\system32>Get-WebServicesVirtualDirectory | fl *auth*
CertificateAuthentication     :
InternalAuthenticationMethods : {Ntlm, WindowsIntegrated, WSSecurity}
ExternalAuthenticationMethods : {Ntlm, WindowsIntegrated, WSSecurity}
LiveIdSpNegoAuthentication    : False
WSSecurityAuthentication      : True
LiveIdBasicAuthentication     : False
BasicAuthentication           : False
DigestAuthentication          : False
WindowsAuthentication         : True
[PS] C:\Windows\system32>Get-AutodiscoverVirtualDirectory | fl *auth*
InternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated, WSSecurity}
ExternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated, WSSecurity}
LiveIdSpNegoAuthentication    : False
WSSecurityAuthentication      : True
LiveIdBasicAuthentication     : False
BasicAuthentication           : True
DigestAuthentication          : False
WindowsAuthentication         : True
Do you have any additional suggestions that I can try? From what I can tell my authentication methods all match the default settings now.
Edit: As soon as I changed EWA to just Basic Authentication as it says in the linked default settings I would get an error when trying to browse to the EWA that said "Outlook failed to initialize" and re-adding the Windows Authentication, then running iisreset
fixed the issue. Therefore EWA is the only service with non-default authentication methods now.

Outlook 2010 keeps prompting for credentials

Hello,
I have just about every user experiencing an issue with Outlook 2010 where Outlook keeps prompting for credentials. This has been happening ever since recent Microsoft Office updates that rolled out last week it seems. All my users still have connection
to the exchange server and can send/reply just fine. Issue occurs on both 32 bit and 64bit versions. This prompt will appear every few seconds and is becoming a nuisance for all my users.
I have attempted the following with no resolution:
- removed credentials from credentials manager
- ran Outlook in safe mode
- ran repairs on Office
- completely removed and re-added users Outlook profile (profiles are manually configured)
- made sure Office is up to date
- configured Outlook account on freshly imaged PC

Hi,
For this issue, you can first try some suggestions in this forum content:
Why does Outlook keep prompting for password
Especially try NTLM Authentication to check the result.
We have received some report about this issue since the February 10, 2015 update for Outlook 2010 (KB2956128). If you have installed this update, please note we have realized this issue and once there is any update, I'll let you know.
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.

SBS2008 in combination with Outlook 2013 keeps asking for credentials

I've got a SBS 2008 server with windows 7 pro clients.
Some of them use outlook 2010 and some use 2013.
The users which use the 2013 version has a problem with saving of the credentials.
Every time they start outlook 2013 they will be asked for credentials and some of them 5 times before it starts.
The weird thing is: if you click ESC to close the screen that asks for the credentials, outlook still connects to the mailbox.
Is there someone who can tell me how to fix this problem.

Hi Willy-Billy,
Any update? Would you please let me know the current situation of this issue?
In addition, would you please let me confirm something more?
Please check if problematic user accounts access mailbox correctly via OWA.
If you create a new outlook profile for a problematic account, will encounter the same issue?
As mentioned in the link that Robert provided, please check if you enable
Always prompt for logon credentials setting in Outlook 2013.
If you enable this setting, please uncheck and monitor the result.
Meanwhile, please remove the old credential in
Credential Manager, then add again. Please check if this issue still persists.
Please run
SBS 2008 BPA to collect SBS configuration information and analysis. Then check if you can find some clues.
Windows SBS Best Practices Analyzer (BPA)
http://support.microsoft.com/kb/2673284
Hope this helps.
Best regards,
Justin Gu

Outlook 2013 keep asking for password

Hi,
We having problem where outlook is keep asking for password every time you start outlook.
Things I tried
- I have created new outlook profile - still same problem
- Clear all passwords from password manager - still same problem
- Deleted the .OST file - still same problem.
- Always prompt for logon credentials - this is not tick
- I have tried this
http://support.microsoft.com/kb/290684
Only happening on Office 2013 not office 2007
One thing I did notices when I was debugging the problem.
When I removed the office and reinstalled the problem went away for
whole 1 week but then on Monday it start asking for password again which
makes be thing that they is something in group policy which is causing
this.
We are using
- Windows 7
- Office 365 (2013)
- Our emails are being hosted by Microsoft clod
I don't know what else to try or check.

Hi,
Does this issue happen to all clients or a special one?
Please first check if Logon network security under More Settings on the Microsoft Exchange
Security tab is set to a value other than Anonymous Authentication.
In addition, you may also follow this article to troubleshoot the issue:
http://blog.quitecloudy.com/2012/06/troubleshooting-office-365-multiple.html
Please Note: Since the web site is not hosted
by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Regards,
Steve Fan
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.

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

Outlook 2007 keeps asking for username and password

We have a new exchange 2007 SP1 server but occasionally the outlook clients will ask for the username and password.
Is this a bug or does anyone have a fix?

Hi Edwin,
I have an SBS 2008 install with a similar problem. Using a GoDaddy Cert. Worked fine prior to me running an update to the server. So I think we are getting some where here.
Symptoms
Win Server 2008 (Or SBS 2008)
Exchange 2007
Outlook Anywhere Enabled (RPC-HTTP)
SSL Cert Signed by GoDaddy
Outlook 2007 Clients
Outlook 2007 Clients show Login prompt to the 'remote.example.com' cancel or disable keeps poping it up after some time.
RPC-DIAG shows no problems
Client not configured for RPC-HTTPs
Outlook 2003 Clients unaffected
Things I have tried:
Basic & Windows Authentication on the EWS Virtual Directory in IIS7 on Exchange 07 (SBS 08) box - No Joy
New Profile on Outlook 2007 win XP SP3 - No Joy
New Profile on Outlook 2003 win XP SP3 - Works, but rest of office running Outlook 2007
Disabling Outlook Anywhere - No Joy
Visiting https://remote.example.com on affected Outlook 2007 win XP SP3 Machine - No Error Pages, or dialog boxes, Internet Explorer sees it as a valid Cert
Any KB Articles, or notices?? I have two end-user with a possible third (Business owner) who are getting cranky. :(
EDIT: Found a fix for me potentially via - http://social.technet.microsoft.com/Forums/en-US/exchangesvrdeploy/thread/c1e72d2a-d360-4ff0-b2f5-1a9ae149df18 and http://www.microsoft.com/communities/newsgroups/list/en-us/default.aspx?dg=microsoft.public.exchange.admin&mid=00d4a681-f588-4eed-b4f8-5c3645e7376c&sloc=en-us
[email protected]
I had an issue similar to this. Win2k3 Ex07. All of my Outlook 2007
users were getting prompted over and over for the username and
password. It wasn't checking the certificate that they had installed
via internet explorer. To fix the problem, I opened IIS on the
Exchange server and checked the following directories under the
default website (the root site(default web site), oab, autodiscover).
Under the directory security tab, click Edit in the Secure
Communications section. I had the require SSL checked and the 128bit
encryption, but under Client Certificates, it was set to ignore. Once
I changed that to Accept for each of the folders, stopped and started
IIS, I stopped being prompted all the time for credentials. Hopefully
this will help someone in the future.
Just confirmed fixed for client!!!
-IL

Microsoft Lync 2010 continuously asks for credentials after signing in

Hi,
we have lync 2010 frontend server at our office, it is working fine for the all the users, but one user who will connect our network through VPN it will continuously prompts for credentials eventhough if we are providing right credentials, because of this
user will be not able to recieve emails from his outlook. all other VPN users working fine. how to troubleshoot this issue, please any help?
Regards
Asha

Hi,
The issue may occur if the Outlook integration is not correctly on this client after connecting through VPN. What is the
difference for the location or sign in type between this user and other working users?
Lync generally only prompts you for credentials after you are logged in when it must connect Lync to a linked service such as the Microsoft Exchange Free/Busy service or the Calendar service.
If Lync continues to ask for credentials after three separate dialog prompts, there is likely an issue with Outlook integration or with the Exchange services themselves. I suggest referring to the following information to check the issue.
http://support.microsoft.com/kb/2298541
http://support.microsoft.com/kb/2436962
Regards,
Kent

Lync 2010 client asks for credentials when outside of corporate network.

Hello,
We are running Lync 2010 Enterprise. Everytime our Lync users are outside of our network and they log in to their Lync client, they get a pop-up window asking for credentials. When they log into Lync inside our network the Lync client connects automatically
without asking for credentials. Is this normal behavior? I assumed that the Lync client would behave exactly no matter where they were connecting from. They are using Lync 2010 client on domain joined laptops, I would assume the Lync client would just use
the same credentials they used to log in to their computers and not ask for anything. Please let me know if there is a way to stop the pop-up from showing up when people try to connect to Lync from outside our network.
Thanks for any help!

Outside of the network the credential popup is for Exchange web services on the back end to check calendar info, contact lookup, etc. If Lync is already logged in when they see the popup, this is normal behavior.
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications
This forum post is based upon my personal experience and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

Office 2007 Documents Keep asking for credentials

Hi All Gurus - Is there any issue with SP 2013 and Office 2007? We are trying to access office documents using IE 11, it prompts for credentials first time after compture reboot. Once given credentials it works fine whole day. but users who reboot there
computer have to provide credentials next day. It's not with the PDF documents. Also, we have set proper Alternate Access Mapping and FQDN for the site. Also, the intranet site has been added to the trusted site. Also, tried with the Local Intranet Zone setting
"Automatic logon with current username and password".
Users with the IE 10/11 and Office 2010 have no issues.
Could anybody please guide me on this?
Regards,
Khushi

try these links:
http://blogs.technet.com/b/office_integration__sharepoint/archive/2014/02/24/users-are-prompted-for-username-and-password-when-opening-an-office-file-from-a-web-server.aspx
http://www.mysharepointadventures.com/2012/02/sharepoint-keeps-prompting-for-credentials/
http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/MS-SharePoint/Q_27955868.html
http://stackoverflow.com/questions/375390/office-documents-prompt-for-login-in-anonymous-sharepoint-site
also you can try to disableloopbackcheck as below link:
http://blogs.technet.com/b/sharepoint_foxhole/archive/2010/06/21/disableloopbackcheck-lets-do-it-the-right-way.aspx
http://www.jeremytaylor.net/2010/05/24/sharepoint-disable-loopback-check-disableloopbackcheck-dword-in-registry/
also try tocheck if compatibility issues is present between sharepoint 2013 and office2007 docs.
Please mark as answer if you find it useful else vote for it if it is close to answer..happy sharepointing

Outlook 2010 randomly asking for password

I know this is a frequent complaint, but I have not found a viable solution to stop this problem.
I am using Outlook 2010 on Windows 8.1 (with all the latest updates)
About a month ago, Outlook started to randomly ask for the username and password on two of my accounts.
I have tried all the solutions that I could find, but none work.
I have 3 accounts set up, 1 for me on a POP account with Verizon, a 2nd for my wife also with Verizon, and a 3rd is an IMAP for work.
I do not have a problem with the work account, but the 2 POP accounts randomly ask for the username/password and by the time I press OK will fail. Sometimes the scheduled send/receive works fine.
There were no credentials set up for these accounts (I have tried adding it and later removed it since it did not help)
I have tried removing the profile and readding as well as removing and adding the accounts again (using the same .pst files), losing my calendar in the process by the way.
If I manually initiate the send/receive, it usually works fine (I may have seen it ask for the PW once or twice)
The usernames and passwords are set up correctly and all the right boxes are checked.
I even set up groups so that the 3 accounts are scheduled at different intervals and the IMAP account only receives mail from the inbox without checking subscriptions and sends.
Any help would be appreciated,
Ken

Hi Ken,
Have you ever tried to clean the credential history cached in Windows Credential Manager? Sometimes incorrect credential cached in Credential Manager will result in this kind of issues:
Go to Control Panel, 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.
For more steps to troubleshoot this kind of issue, you can refer to this ForumFAQ thread:
https://social.technet.microsoft.com/Forums/en-US/bcd2d9c2-1a1b-4446-bf32-69fee8cdf11b/why-does-outlook-keep-prompting-for-password?forum=outlook
Hope this helps.
Regards,
Ethan Hua
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.

Outlook 2010 keeps prompting for password every morning

Hi,
We run Exchange 2007 on Windows server 2008. All SP and updates are up to date.
About a month ago, two users got prompt for user credential in Outlook every morning, but other users in the domain are fine. Below are what I have tried but no help.
1. Deleted user credential for Outlook in Credential Manager
2. Recreated Outlook profile
3. Disjoin and rejoin their computers to the domain
I can repeat the problem on another computer with the user's account log in.
The problem only happens in the morning, once the user entered the credential, Outlook starts to update new email and it will be fine for the rest of the day.
Only two users have this problem. I can't figure out if they have anything in common. Since I can repeat the problem on another computer, I assume this problem should be related to user account.
I need help!
Thanks in advance!
Grace

Hi,
As per the information and details provided by you, to solve the Outlook 2010 password problem, please follow these steps: -
Firstly, you try to
change the profile.
Open Control panel/Mail/Select the profile and click Properties.
Select the mailbox and click the
Change button.
When inside the profile you will see tabs at top for
connection and security.
Please make sure you have selected
Negotiate authentication, and have unchecked the box that states
Always prompt for login credentials.
Then check if you are using
HTTP to connect with exchange, if so uncheck this and apply the changes.
Close Outlook if open and reopen Outlook.
I hope this information will be helpful for you.
Thanks and regards
Shweta@G
Hi Goyal,
Thank you very much for your reply. The Outlook settings are the same as you described. We do use HTTP to connect to Exchange. I unchecked it and see what happens tomorrow. but just FYI. All Outlook has the same settings with HTTP connection checked. Only
two specific accounts have the credential issue.
Will update you tomorrow.
Thanks,
Grace

ITunes keep asking for credentials

Hi all, I have an IronPort S170, with latest version and updates.
We have a lot of users using itunes to sync Apple devices, the problem is that it allways asks for user & password, several times (really annoying). Can anybody help me solving this issue?
thanks a lot
Best regards.

HI Gonzalo,
I assume you're using NTLM SSO. Pending on you configuration this auth popup is created due inability to authenticate via NTLM for the specific request. It seems there are currently known problems with iTunes and NTLM auth. I found records on apple support communitate reporting version 1.6 of iTunes no longer being able to proper authenticate via NTLM. As workaround you could use e.g. IP surrogates which will keep the users IP authenticated once the first request has been authenticated, e.g. via Internet Explorer. By this iTunes will not require to authenticate again. Also your Domain Controller will be happy to have less auth request.
-Stephan

Outlook 2010 client ask for credential when Exchange 2010 server restart

Hi,
Each time our Exchange server is restarted (most of time for update installation), all open Outlook clients are prompt for credential.
This is annoying because when the users come back, sometime they don't take care about the credential windows and believe that's they don't receive any mail and start to prompt the support when they notice that's their mail come to their mobile but
not on Outlook...
One solution is to ask everybody to shut their computer down every time an update of the server is planned. But as the users are, by design, very lazy and don't really care about this kind of things. It isn't an acceptable solution.
Does anyone know if there is a way for stopping Outlook to ask about credential when it loose temporarily the connection with Exchange ?
Thanks for reading

Hi,
Just checking in to see if the information from Ed (DareDevil57) was helpful. Please let us know if you would like further assistance.
Regards,
Melon Chen
Forum Support
Come back and mark the replies as answers if they help and unmark them if they provide no help.
If you have any feedback on our support, please click
here

Outlook 2007 keeps prompting for credentials

I've seen so many articles on this and it still plagues me. I've had enough.
I am in a pure Exchange 2007 environment.
SCC Mailbox Server
Hub & CAS are on a different Server but together.
Outlook 2007 is installed on my workstation.
I setup a profile using the auto-discover process (default) and I am prompted for a passwrod to my hub and CAS? I enter in the CORRECT credentials and I am prompted again. Remembering months ago that I was unable (or unwilling) to resolve this annoyance I hit cancel and chose to set it up manually. this worked using the Exchange Clustered Mailbox name.
As soon as the profile is setup and I am into Outlook I'm prompted again! wow, what is this? I enter in the CORRECT credentials AGAIN and i am repeatedly prompted. after hitting cancel 30 times i continue on with my work.
..but then I close and re-open Outlook, same process all over again. the Windows prompt is prompting me for creds on domain.com (my domain) what is going on here. i have not even had a chance to configure (break) anything....is this default behaviour for exchange 2007/Outlook 2007? I know I am missing something here but I just can't seem to get around this.
I have tried most MS KB articles out there (can't find the links to provide)
Yes, I'm on the Domain
Yes, I have decided to set it up manually and chose not to use Auto-discover, which to me at this point is a terrible feature.
Yes, my bottom right corner of Outlook 2007 says "Online with Microsoft Exchange"
Outlook 2003 clients do not have this problem which tells me this is something in Outlook. I can uninstall Outlook 2007 and replace it with Outlook 2003, same workstation, same user logged in with no problems.
Whats going on here?
thanks

i solve this problem with this
Kernel authentication Mode
If you have all the above configured and you are still experiencing problems then the following procedure will more than likely fix it for you. It has been working a lot for me lately and also for people asking questions on Experts
Exchange.
In Internet Information Services (IIS) Manager locate the Exchange virtual directories, if you are using Small Business Server 2008 these will be under the SBS Web Applications website, if your not using SBS then they will be under
the Default Website.
The virtual Directories you are looking for are:
Autodiscover
EWS
RPC
OAB
In turn highlight each of these virtual directories and double click the Authentication icon on the right hand side. Right click on Windows Authentication and select Advanced Settings. Place a check box in the box for Enable kernel-mode
authentication. Do this for each virtual directory listed above.
http://demazter.wordpress.com/2010/02/09/outlook-continually-prompting-for-username-and-password-2/

Outlook 2010 keeps asking for credentials

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