I have tried accessing multiple servers posted around this site, but I cannot successfully get into any of them. Every time, it connects to the server, than says "logging in." It does this for about 20 seconds, then it says that I was disconnected from the server because I took too long to log in. Is this my setup, or are all of these servers full?
The servers are all a little wacked until minecraft.net comes back up. For some reason, even after you authenticate, it still needs to communicate with the minecraft.net server before connecting to someone elses server.
It won't even connect to my server, which is one hop away through a gigabit switch, so lag shouldn't be an issue.
My laptop gets booted every time I try to connect online even to my own server thats hosted on the same network. MC only allows a short amount of time for your computer to load before it disconnects you from the server.
Now you didn't mention anything about your computer so I can't tell whether this is the issue with you or not.