Windows 2003 Terminal Server issues under load

[Murray Trainer]

Hi,

We have two Windows 2003 Terminal Servers and were are using MIT Kerberos 3.2.2 and OpenAFS 1.78 to map user's AFS folders tp a Windows drive letter.  Things work fine until we get about 35+ users on either server and the Kerberos ticket and/or AFS token retrieval start failing at differing points.  It appears to be that some sort of network related resource is running out and Kerberos ticket / AFS token is no longer possible.  Has anyone experienced this issue or have any suggestions on how fix the problem.

Thanks 

Murray Trainer