The connecting party does not get a response from the host, this is an unspecific issue and usually caused by misconfigured network hardware, defect network hardware or ISP limitations. You can try to swap out router or switch if you have spares, or try to test UDP connection between both parties b...

Sorry to bump, but I've had no reply and it has nearly been a month.
Cheers

TL;DR: When a friend tries to connect via the public games list or steam, they receive a network error, I can still join games (most of the time). Please Note: This issue of my friends not being able to connect to my games started to happen out of the blue, it has been an issue for a while and I'm ...