SharePoint, Host Headers and Loopback Checking

User Rating:  / 0

Details

Alexander Zoutenbier

Created on Wednesday, 19 October 2011 21:05

Hits: 115

When you create a host header on a SharePoint Web Application and you try to access a site collection on that server you cannot login. Every Time you enter your user-name and password the login box comes back.

The clue here is that the only machine I can’t browse to the root site collection from, is the local machine itself.

To fix this you can add a registry key to disable the loopback process.

1. Click Start, click Run, type regedit, and then click OK.
2. In Registry Editor, locate and then click the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
3. Right-click Lsa, point to New, and then click DWORD Value.
4. Type DisableLoopbackCheck, and then press ENTER.
5. Right-click DisableLoopbackCheck, and then click Modify.
6. In the Value data box, type 1, and then click OK.
7. Quit Registry Editor, and then restart your computer.

NOTE: When you don't restart your computer the fix will not work!