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Sharepoint Requires Authentication

Posted on 2011-10-05
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Last Modified: 2013-02-07
Our corporate intranet is on Sharepoint Foundation Server 2010.  It has been working fine for since February 2011; however, recently a small number of users (3 of 600) are being prompted for authentication credentials when browsing to the site.

The users are using IE9, no plug ins or add ons.

We have tried rebooting the client computer, resetting the browser to factory defaults, deleting temp files, and clearing cache.  The site is in the intranet zone (defined by group policy).  No particular update seems to have caused this issue.
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Question by:RPPreacher
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18 Comments
 
LVL 12

Expert Comment

by:FarWest
ID: 36919795
do you have ISA or TMG installed
if yes check the exception list on the browser connection settings
also you can try remove/add those workstation from domain
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Expert Comment

by:JohnGrunwell
ID: 36919805
Go to internet properties, click on security tab, go to custom level scroll to the bottom, in the logon section check use current username and password.
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Author Comment

by:RPPreacher
ID: 36919973
>do you have ISA or TMG installed
No.

>Go to internet properties, click on security tab, go to custom level scroll to the bottom, in the logon section check use current username and password.
Already checked.

Again was working for 8 months without issue.  No real significant network/server changes.
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LVL 7

Expert Comment

by:JohnGrunwell
ID: 36920009
it is a internet explorer 9 issue. I had the same problem.
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Expert Comment

by:JohnGrunwell
ID: 36920022
Have you tried a different browser?
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Expert Comment

by:louisreeves
ID: 36920040

DOes this happen if the user goes to another compuer? I would think it will not follow the user. this would equate to a local machine authentication issue try to run  control keymgr.dll and see if you have credentials

Check out the credentials section here and see if this helps:

http://blogs.msdn.com/b/opal/archive/2010/03/07/sharepoint-2010-with-windows-powershell-remoting-step-by-step.aspx

L
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Author Comment

by:RPPreacher
ID: 36920210
>it is a internet explorer 9 issue. I had the same problem.

45% of our user base uses IE9 (about 250 users).  3 have this issue.  If it were IE9, all users would have this issue.  I have IE9; no issue for me.

>DOes this happen if the user goes to another compuer?
Good question.  I doubt it but will find out.
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Expert Comment

by:ddiazp
ID: 36920234
So you're saying these users were able to go into sharepoint before without being prompted, or are these new users?

Any chance these user's password has been cached by the browser, the users have changed their passwords recently and the browser is sending the wrong password? Try clearing saved passwords from their browsers.
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Author Comment

by:RPPreacher
ID: 36920393
>you're saying these users were able to go into sharepoint before without being prompted
Yes

>Any chance these user's password has been cached by the browser
Seems unlikely given the troubleshooting steps outlined in the problem description.
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Expert Comment

by:jessc7
ID: 36921477
Are their workstation clocks off from the domain server / SharePoint server?
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Author Comment

by:RPPreacher
ID: 36921658
I'll check.
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Expert Comment

by:pgroup3074
ID: 37147096
I too am experiencing this annoyance. SharePoint Foundation 2010 was recently deployed and my users are reporting this annoyance daily. The quirk is they never lose connection to the site they are accessing. They select cancel when prompted for credentials, refresh, and the site page remains.
I have implemented the AuthForwardServerList reg hack (NG). In addition the url to the server has been added to the intranet zone also no success.
I also believe the issue to be related to IE9. This is hard to believe since we are taalking about Microsoft products across the board. I have tested using Chrome, FireFox, IE8 for a few days now and I am never prompted for credentials.
If anyone out there has further insight please post.
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Accepted Solution

by:
RPPreacher earned 0 total points
ID: 37147809
One of the embedded images was pointed to the external DNS mapping for the internal domain (ex.  internal domain is domain.local, external domain is domain.com.  The image was on server.domain.com, not domain.local.)

When I change the mapping of the image to server.domain.local, the issue disappeared.
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Author Closing Comment

by:RPPreacher
ID: 37169515
One of the embedded images was pointed to the external DNS mapping for the internal domain (ex.  internal domain is domain.local, external domain is domain.com.  The image was on server.domain.com, not domain.local.)

When I change the mapping of the image to server.domain.local, the issue disappeared.
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Expert Comment

by:pgroup3074
ID: 37148502
None of the images (few that there are) that are present on any of the sites in question are pointing to any external domains.
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Author Comment

by:RPPreacher
ID: 37148579
Pgroup374, this is not your question.  Open your own question if you want someone to solve your problem.  You cannot hijack a question and object to a close because its not your solution.
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Expert Comment

by:pgroup3074
ID: 37148692
my apologies
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Expert Comment

by:Formition
ID: 38866521
If they are being constantly asked to enter their userid/password and never make it to the first page, then we also had the same issue, I found that the network policies were mixed and the "bypass proxy for these sites" had the sharepoint website listed in it for some users but not for others, it was difficult to see this as IE had been locked down and you could not actually see what they were set to.

As this was an intranet SharePoint 2010 environment any user that was being re-directed through the proxy was constantly being asked to enter their credentials, not sure what proxy we were using but I did find other articles that pointed out some proxies just won't work with passing credentials through automatically.

The effected users were not receiving policy updates on their machine, do a roll-out of policies and ensure you add your sharepoint server to the bypass proxy setting in IE for all users. Or manually change this on the effected users pc.
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