I have several clients whos computers are set up to access secure networks. I don’t know a lot about it but they have to access through a proxy and can’t access the internet and this remote network at the same time. When they log off their network and attempt to access my ftp server cerberus logs the ” not an authenticated NT…” etc. message (I forgot the exact text). He suspects that port 20-21 are closed and probably most of the others. I know that this is very vague but I haven’t had a chance to look at his system and am wondering if you guys have encountered any similar problems so I know what to look for when I get a chance to look at his system.