There are no initial problems when connecting to servers. I can play on them either for a whole hour calmly, or literally 10-15 minutes, after which a message pops up that no messages were received for N amount of time. Then a crash from the server. I checked the ports - all the necessary ones are open and everything works. There are no problems connecting to the Internet either, because during the indication on the right in the game in the form of a chain of red, indicating a loss of connection, I check in the browser to load the page - everything loads, nothing crashes except the server.