That's because most of the time, the server is down. I have found a pretty neat server tho. Not AG exclusive or anything, but you will be able to find me there.
if you mean my server, that was because I was on vacation. Also, its only on when someone in the network requests. i will try to keep it on at night to help ppl in other time zones. And legion, sure, but you need to join the hamachi network. And to the other person who wants to know, there is a tab in the hamachi window that says "network". right-click it, and there should be an option saying connect to a network. click it, and use the login info i provided earlier. then, there should be a user named abcd on the network screen (that's me.). copy his hamachi ip (displayed to the right of the name) and paste it into the spot where you put the ip of the multiplayer server you want to connect to (in the minecraft "multiplayer" option). If the server is running, you should connect. if it is not, then go to the hamachi screen, right-click the network name (in this case, IPRMinecraft) and click "open chat window". From there, just chat that you would like to have the server turned on. Have fun!
Alright, this whole multiplayer thing has me confused. When I put in the IP to enter Survival Multiplayer, it won't let me in! I always make sure it's right, but it still won't let me in.