This is the third time this has happened. I kill about 400 spam bots in a few seconds and the services die. [Feb 22 13:06:45 2003] FATAL: introduce_user() loop detected. Thats all that is in the logfile. We are running Unreal3.1.5.1. (it just happend again with a lot less then 400) it seems to just happen when you issue a bunch of kills at once.