The system detected a possible attempt to compromise security

[Nadeem]

Can anyone tell me how to solve this error message that I am getting "The system detected a possible attempt to compromise security. Please ensure that you can contact the server that authenticated you." Thanks for any help.

[HELLIAN]

The issue that you are facing occurs because the network firewall filters Kerberos traffic. So to solve this problem, configure the network firewall so that TCP port 88 and UDP port 88 are not blocked for either domain. More information is given here - http://support.microsoft.com/kb/938457