Crossfire Connections problem

A year ago I played this game on another account and had no problem with the same internet, was very quick to connect, and now I have this problem.

It is frozen hard in all servers but falls back into channel. Disconnedted from server. Returning to room due to a host error. disconnedted from host0-3

i doing this didn't work:

reinstalling the game 4 times
cmd ipconfig /flushdns
netsh winsock reset
disable firewall
disable antivirus
reset router and modem

and still didn't work

i need help.

sometimes it's z8 servers. they're unstable and you can't help it.

Do you also drop out of games totally randomly?