Kevin are you sure you can resolve your server name from the cmd line WHILE the Firewall client sware has the red cross through it? Reason is I had a similar prob whereby FW clients were being allocated the WRONG IP addr of the server by WINS - this prob applies to SBS2K (is that what your server is running) but I haven't got the Q# handy at the moment. Either way run "nbtstat -c" from cmd line (will list your netbios name cache) next time it happens to make sure your server name has been resolved to the correct IP#. Nigel