Hi Grant, thanks for the reply!
> I'd probably fire up Wireshark and capture the network traffic > to/from the remote host when the Python app attempts to connect > and when another client connects. Yes, low level traffic analyzing would have been the next logical step. However, mysteriously things started to work after several reboots and restarts. Probably a Windows / WinSock issue I don't need to fully understand. ^^ Thanks anyway! Florian -- http://mail.python.org/mailman/listinfo/python-list