The realms might not have the correct trust relationships set up.
Solution: Make sure that the realms you are using have the correct trust relationships.
Solution: Make sure that the server you are communicating with is in the same realm as the client, or that the realm configurations are correct.
Solution: Make sure that you are using with the correct options.
If necessary, modify the policy that is associated with the principal or change the principal's attributes to allow the request.
Cause: There was a mismatch in the network address.
The network address in the ticket that was being forwarded was different from the network address where the ticket was processed.
Cause: The password that you specified for the principal does not contain enough password classes, as enforced by the principal's policy.