So this started a while ago, but I figured it would fix itself over time; it hasn't, though.
When I go into Multiplayer and look at my server list, it shows most Aternos servers, both offline and online, with a "Can't Connect to Server" underneath the name. If I click it, it says the same thing. It works on one server, but all others it just says that.
Those are all Aternos servers, and when i click to join one, it does this;