When I try to log in the web application in a SharePoint 2010 front-end server, I cannot log in and I get the following warning in Security and System Event log.
Cause
The "loopback security check" feature is enabled in the IIS server. It prevents to access to a web application using a fully qualified domain name (FQDN).
Resolution
There are 2 methods to solve this issue.
1. Specify host names (Preferred method if NTLM authentication is desired)
1. On the front-end server, log in as a local or domain administrator.
2. Launch "Registry Editor".
3. Navigate to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA\MSV1_0".
4. Right-click "MSV1_0", create a new "Multi-String Value" named "BackConnectionHostNames".
5. Double-click "BackConnectionHostNames".
6. Type host names which are hosted in the local computer.
7. Click "OK".
8. Restart the server.
2. Disable the loopback check
2. Launch "Registry Editor".
3. Navigate to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA".
4. Right-click "LSA", create a new "DWORD Value" named "DisableLoopbackCheck".
6. Under "Value data", type "1".
7. Click "OK".
8. Restart the server.
Reference:
You receive error 401.1 when you browse a Web site that uses Integrated Authentication and is hosted on IIS 5.1 or a later version
DisableLoopbackCheck. Lets do it the right way
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Thanks, it works for me!!
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