It appears I may be having an issues with kerberos from behind my NAT. I have one user that is doing a large file transfer, and it die out. What I have found with a packet capture is that there is a kerberos request packet sent out, that comes back rejected, right before the transfer stops with an error message. The odd thing, to me anyway, is that the request is sent out after the transfer has started. I have a pretty standard PAT/NAT set up, and all my other users have no issues. Is there some option I need to set in order for kerberos to work correctly for this one user? I say one user because she is the only one that has this issue.