Outlook asks for credentials 2 times

Hello,
I'm in the middle of a transition from SBS 2011 to 2012 R2. Currently Exchange 2010 and 2013 co-exists. Every time I start Outlook (2013) it asks for credentials. If I use [email protected] format it does not accept. If I use domain\user format, I
have to enter it 2 or 3 times, then Outlook works fine.
OWA, AS, mail flow seems to be working.
What can cause the password prompt?
TIA

Try out the following fixes:
Try to recreate the outlook profiles. Also, Check "Credential Manager" in Control Panel to see if there are any old entries for Outlook.
Refer: http://myitforum.com/myitforumwp/2013/02/05/solution-outlook-200720102013365-prompts-me-for-credentials-each-time-i-open/
Change the authentication to NTLM instead of Basic Authentication and see if this makes a difference.
Uncheck the Exchange proxy settings
Uncheck the "Download shared folders"
File -> account settings ->account settings -> Edit.. (account) -> More settings... (button on the bottom) -> Advanced (tab) -> Un-tick "Download shared folders"

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Outlook asking for credentials - only occurs after secondary mailboxes are deleted from exchange

Hi there. I've got a problem that just started popping up recently with our users.
Often, we will have a user leave the company. When this occurs, an employee will often backfill the position and need access to the prior employee's e-mails. No problems. I will go into the exchange server and grant the new employee full
access to the old employee's mailbox. I will then add the mailbox to the new employee's Outlook. This system had been working great.
As part of our routine maintenance, my network admin will regularly go into exchange and clear out mailboxes that are > 6 months old. Often, our users will still have these mailboxes loaded into their Outlook. This never caused a problem before.
However, after a recent clear out, anyone who had one of these old mailboxes loaded is now getting a prompt for security credentials upon opening Outlook. This has never occurred in our environment before. Users that are only loading their own
mailboxes are unaffected. Users that are opening another user's mailbox that is still active are also unaffected.
Tried googling around, but this is something that is almost impossible to search for, as it is a relatively obscure scenario. Any assistance would be greatly appreciated.
Some more info on our environment:
Running Exchange 2007 and various versions of Outlook from 2007 to 2013. It seems that this problem has only occurred on Outlook 2010/2013 computers, but I can't say that with 100% certainty.

Check your auto-discover and scp point works correctly using the https://testconnectivity.microsoft.com and Test-Email Configuration from right click the outlook.
Confgure the outlook profile with only the newly connected mailbox.
Check out the exchange cache mode in outlook
Verify the latest patch is properly updated in outlook 2010 and 2013 - as few issue got cleared out.
Check-out the outlook is connected to wired network for testing purpose.
Try to access the connected account using owa.
Hope this helps you out...
Exchange Queries

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.

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 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

Outlook 2013 asks for credentials but does not connect for Exchange email, but only when out of office

Hi,
New employee wishes to use his Office 365. Have loaded onto new PC, connected to exchange, loaded his folders, everything is fine.
When he leaves the office and connects at home, he is asked for credentials.
I have tried the usual credentials: [email protected] and domain\user
With each attempt, Outlook displays disconnected
The password is correct, OWA he can log on fine, he has no problem when returning to the office. He has all the correct permissions in AD.
No other user has a problem when away from the office, but every other user is using Office 2010
Advice appreciated.

Hi,
Please make sure the user has enable Outlook Anywhere in Outlook.
To turn on Outlook Anywhere, on the Connection tab, under
Outlook Anywhere, check Connect to Microsoft Exchange using HTTP, and then click
Exchange Proxy Settings. Your Exchange admin must enable this feature and provide you the proxy settings. For more information, please refer:
http://office.microsoft.com/en-in/outlook-help/use-outlook-anywhere-to-connect-to-your-exchange-server-without-a-vpn-HP010355551.aspx
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Hi All,
I setup 2 Mac Minis, 'setup in a no-apple id. Now with Mini1 I installed a shared printer from Windows7 Pc it ask for credentials then I input Adminstrator account and the password ticking the remember in "keychain"
I run a test print and its seamless. I reboot the Mini1 and run test print again and its good.
Now in Mini2 I did the same installation on shared printer but it is asking for user credential again and again, there is a check mark in "remember in keychain but still gives a notice that "requires authentication" I put the admin creadentials same with Mini1 then it prints.
every time I print on Mini2 its always asking for a user & password before Printing. How can we fix it.
I tried
- lpd printing = "authentication required"
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Hi All,
I setup 2 Mac Minis, 'setup in a no-apple id. Now with Mini1 I installed a shared printer from Windows7 Pc it ask for credentials then I input Adminstrator account and the password ticking the remember in "keychain"
I run a test print and its seamless. I reboot the Mini1 and run test print again and its good.
Now in Mini2 I did the same installation on shared printer but it is asking for user credential again and again, there is a check mark in "remember in keychain but still gives a notice that "requires authentication" I put the admin creadentials same with Mini1 then it prints.
every time I print on Mini2 its always asking for a user & password before Printing. How can we fix it.
I tried
- lpd printing = "authentication required"
- reset printer settings ang re-install printer = "authentication required"
- replace sharename in windows7, reinstall printer in Mini2 = "authentication required"
This stuff never happened to Mini1.

Unchecked Require sign option asking for credentials

Hi,
I have created a site in SharePoint Online(Office 365). Uploaded one document with external user with "Require Sign in" check box unchecked (for ex: [email protected]).
When i click on document link, it redirects me to default login page of office 365.
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Its working as expected in chrome but not in firefox & IE.

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.
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Winnie Liang
TechNet Community Support

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Hi,
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I can access shares on both sites without a problem. Then I have this Synology diskstation which is added to one of both domains. I can access the shares of it in 1 domain, but in the other domain I'm asked for credentials.
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J.
Jan Hoedt

Hi,
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How to join the Synology DiskStation into an ADS Domain
http://forum.synology.com/wiki/index.php/How_to_join_the_Synology_DiskStation_into_an_ADS_Domain
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http://forum.synology.com/enu/viewforum.php?f=25
Best Regards,
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I'm new to Macs, and I'm trying to connect to my QNAP NAS from a Macbook Air on Yosemite.
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Microsoft Lync 2010 continuously asks for credentials after signing in

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Hi,
The issue may occur if the Outlook integration is not correctly on this client after connecting through VPN. What is the
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I just rented a film using my apple TV and was then asked to enter a code - which I haven't been asked for in long time. I have forgotten the code. Any quick solutions to the problem?

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Not being asked for credentials in SSRS 2008 R2 for Firefox and Safari

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Hi Ben,
Per my understanding that you have configured windows authentication and which by default will not prompt for credential. So I assumed you have changed the User Authentication setting in the security setting to pop up for credential, for example like below(IE),
If so, your issue about the pop up credetial not pop up in Firefox and Safari can be caused by the related security setting, If you give Anonymous User rights, you may got the blank page:
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how to change reporting service site seurity setting?
SSRS in firefox not asking for credentials
If you still have any problem, please feel free to ask.
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Vicky Liu
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Vicky Liu
TechNet Community Support

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
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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
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Safari asking for UAC every time with Windows 7

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... it's a strange one ...
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Quit Safari first.
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Click OK.
Does Safari launch without the error now?

Outlook asks for credentials 2 times

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