single signon

[risingflight]

Single Sign on doesnot work on most computers in my network(Windows7).

I have a dotnet based application on which single signon doesnot work. it keeps on asking for credentials and i can see the error 401: unauthorized: access is denied due to invalid credentials

I have a OU where i have my all my computers.
and the ou has a group which is local admin to it(Restricted GPO) as well as the group has access to some localpolicies

Backup up files and directories
Dubug Programs
Manage auditing and security logs
Restore Files and directories
Take ownership of files or other objects.

When i add my domain user to this group then my single singon works else it doesnot work.

I have reset my browser settings to default add it to trusted(under local intranet).
then tried enabling local policies like
Network Security : configure encryption types allowed for kerberos
Network Security : LAN Manager authentication level.

Still did not work. single singon is not working still please do guide me.

 

[ThrashZone]

Hi I was a bit surprised how many search results on this there was :shock:
Did you look at any of them ?
error 401: unauthorized: access is denied due to invalid credentials - Bing
This one from Microsoft,
You receive an "HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials" error message when you try to access a Web site that is part of an IIS 6.0 application pool