This thread will probably be used by the whole community. Please consider checking Discord as well if it suits you more.
The server rarely goes down at random instances, and when it does, be assured that we've been informed and are working on getting it up again.
Be advised of a few things.
The World server will automatically attempt to restart itself. This process takes about 15-20 minutes. Characters will not load if the World server is down, and you may see Martyr's Square in the server list, but clicking it does nothing.
The Login server will turn Red and prevent you from launching the game at all. This rarely fails, so if it's red it might be a network issue between you and the datacenter.
The Web server will turn Red and prevent you from launching the game at all. It's likely the website will be down as well, and there's some crazy internet stuff going on. We're usually working on fixing this, or it's broken for everyone and we're waiting.
The Lobby server is the black box after the game launches, this does the "Entering the fray" "Handshaking" "Connecting to the server" before your characters load. If this is not working it needs to be manually restarted and has likely run out of disk space which clears up the temp storage. This happens very rarely, but is almost always the case when it does.