Question

Sharepoint Login Failure

Asked by: zephyr_hex

WSS 3.0
on my web front end server, domain authentication is failing with login attempts to sharepoint.  usually, the logon happens automatically using the currently logged in user's credentials.  i did windows updates on the weekend and rebooted that server. since then, i get 3 prompts to log in, and then am presented with a page stating i'm not authorized to access the sharepoint site.

this happens with any/all users attempting to log into to sharepoint on this server.
sharepoint is accessible from other computers, so it seems to be a problem with this server

but here's where the weirdness really begins:
i have 1 sharepoint site and i have it extended to 2 zones:
http://friendly_url  (zone=internet)
http://servername   (zone = default)

on this server, i can access the site with http://servername
on this server, i have the authentication failure problem with http://friendly_url

event viewer records a login failure
Logon Failure:
       Reason:            An error occurred during logon
       User Name:      username
       Domain:            domainname
       Logon Type:      3
       Logon Process:      ÈùÐ  
       Authentication Package:      NTLM
       Workstation Name:      SERVERNAME
       Status code:      0xC000006D
       Substatus code:      0x0
       Caller User Name:      -
       Caller Domain:      -
       Caller Logon ID:      -
       Caller Process ID:      -
       Transited Services:      -
       Source Network Address:      <IP Address of web front end server>
       Source Port:      4447

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Asked On
2009-05-18 at 08:49:06ID24417941
Topics

MS SharePoint

,

Windows Network Security

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: Robbie_LeggettPosted on 2009-05-18 at 08:57:27ID: 24413289

Follow these steps:

Click Start, click Run, type regedit, and then click OK.

In Registry Editor, locate and then click the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa Right-click Lsa, point to New, and then click DWORD Value.

Type DisableLoopbackCheck, and then press ENTER.

Right-click DisableLoopbackCheck, and then click Modify.

In the Value data box, type 1, and then click OK.

Quit Registry Editor, and then restart your computer.

:-)


 

by: liebrandPosted on 2009-05-18 at 09:01:33ID: 24413335

Here is the article that describes the process and also points to the security update that causes this issue (See More Information Section):

http://support.microsoft.com/kb/896861

 

by: zephyr_hexPosted on 2009-05-18 at 09:01:42ID: 24413338

i love you, Robbie.

 

by: Robbie_LeggettPosted on 2009-05-18 at 09:07:48ID: 24413413

:-)

My pleasure as always zephyr.

:-)

20120131-EE-VQP-002

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