- When you hosted a game, did either of the other Steam players try joining via Direct Connection?
I was only trouble-shooting with the GOG player, I haven't tried having the Steam players join my game. I will try that next chance I get, which is probably Thursday evening CET.

- Please email supportdos2@larian.com with a dxdiag report
Will do.

- Actually, if you don't mind a little more troubleshooting, rename your current network.log files... Then include all 3 copies of the network.log file from your system, and the 2 from the host.
I will do that Thursday evening as well (we have a planned session then).

Thanks for your help so far smile