I might have the same issue, just came on a few min ago and tried connecting, when I did not see the servers, then I got the ip and tried connected yet it also failed. Restarted my game and still didn't work, restart my pc, will be looking for solutions. If someone has suffered from this before or has the solution, please share it with us.
Found the solution acually, I just restarted my pc, connected with the IP 94.23.19.200:27025 (this IP is for server 2), give it time and it should join alone.