Error: 18456, Severity: 14, State: 11 ? | SQL Server Performance Forums

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Error: 18456, Severity: 14, State: 11 ?

Hi all,
I granted a Domaingroup rights in a DB.
If users from this AD group try to connect they geting the above mentioned error.
(Login failed for user ‘MYDOMAINsomeuser’. Reason: Token-based server access validation failed with an infrastructure error. Check for previous errors. [CLIENT: 172.xx.xxx.xx]
If I grant all of this users individualy (same access rights as the group had) login works all right??
Any help is highly appreciated.
TIA acki4711

Check:
http://social.msdn.microsoft.com/Fo…/thread/c3e0713c-b4e6-400e-9ba2-448cd5bf3cb8/

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