Unable to connect

[JakubSTL]

Good evening, I can not connect to any server.

screenshot

Bez názvu.png (2.7 MiB) Viewed 899 times

[Koub]

Hi,
If my Czech is correct (thank you Google translator), It is said Failed to establish network communication with the server.
At what moment does that happen ?

[JakubSTL]

When downloading a file from a server. Moment is loading it

[JakubSTL]

Log

[Koub]

I don't know what's the actual problem, but I've seen that kind of error messages in several topics before, with similar connection issues :
viewtopic.php?f=49&t=56021
viewtopic.php?f=49&t=55603
viewtopic.php?f=49&t=50649

And this one has a possible explanation :
viewtopic.php?f=49&t=39496

Just to help other people into helping find the issue, the message in the log says :
UDPSocket.cpp:477: Recvfrom failed because of TTL problems: The connection was disconnected due to the keep-alive activity that detected a failure during the operation

I'm not skilled enough to pinpoint where your problem comes from, sorry