Specific server not responding specifically for me

There are a few community servers, in specific three from the same host, that I want to connect to badly but the game always says “Server not responding”. I’m not banned from them and everyone else can connect just fine. But I just can’t do it. Someone told me to try and connect to the server through Steam’s server list in the “View” option, but it shows the same message (“Server not responding”).

I’ve already tried turning off the Firewall. Verifying the game’s integrity. Reinstalling the game. Setting launch option and typing the +clientport command. Nothing worked.

I really only want to join the IP 200.98.149.240:27015, but it’s among the ones that simply aren’t responding.

Looking around I’ve only found one other person with this problem, on a post from 2 years ago, and there wasn’t any mention on how to fix this.