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Company web in Sharpoint Services Keeps asking for Username and password

Greg Finch
Greg Finch asked
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Last Modified: 2012-05-07
When trying to connect to the company web in SBS 2008 the browser keeps asking for a username and password. Upon entering the correct username and password it continues to ask over and over and never displays the site. Anyone have any idea what would cause this?
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Andrei TeodorescuBusiness Owner
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Top Expert 2006

Commented:
you didn't correctly set up IIS / host header names (it happened to me once on a win2k8 box)
can you post some screenshots with your IIS config?
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Top Expert 2010

Commented:
does it ever stop prompting and give you a failure to authenticate?  or does it go ahead and display the page?

also, is Event Viewer recording a failure to authenticate?

Author

Commented:
Zephyr hex,

It will prompt for un/pass 3 times and display a blank page. The even viewer does not show a failure.

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Top Expert 2010

Commented:
ok... the 3 prompts is Windows way of saying it's trying to authenticate.  if you do not then get an ERROR page (stating that you failed to authenticate), it means it's not really denying your credentials.  there is something else going on.  to figure this out:

first, make sure your site is added to either the Trusted or Intranet zone in IE options.  also, configure the settings for that zone so that IE passes the credentials of the currently logged in user.  this is done by clicking on the zone, and then selecting Custom Level.  this particular setting is at the bottom of the list.  you want the one that says Automatically Log in with current username and password. then try to access the site.

if you're still having a problem:

close all instances of IE and re-open IE trying to get to the sharepoint site.  at the first credential prompt, do not supply the credentials.  instead, close the prompt box.  pay attention to the URL in the address bar.  did it change?

close IE.  re-open IE and try to get to your sharepoint site.  this time, supply credentials to the first authentication prompt, but not the second.  instead, close the box.  look at the address in the URL.  did it change?

do the same process again... this time supply credentials to the first 2 prompts, and then close the authentication box.  look at the address bar.

and one more time... so that you supply the credentials to all 3 prompts and pay attention to the address bar.

if the address in the bar changed at some point, you need to extend your web application to a new zone.  this is done in sharepoint central admin.

if the address never changes...
it's possible that there is something on your home page that doesn't have the proper permissions set.  to verify if this is the case (and only for testing purposes), add your domain Admin to the Farm Admin group in sharepoint Central Admin, and then try to access your home page.  does the page come up?
Greg BurnsGreg Burns (poortatey)

Commented:
Is this problem occurring on every workstation, or just the server?  There is a known issue with sharepoint sites that use hostheaders on windows 2003 SP1 and above, due to loopback protection.  Ref mskb 896861
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Additional feedback from the author would have been nice.  I won't complain about it being closed with points refunded, but definitely don't delete it.  This is a known issue and others that have the same problem may benefit from the link I provided.
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