Minecraft won't let me connect to a server?

I want to get into this server called Mineplex.com and ever time I go in it it says Failed to connect to the sever. But every time i go into another server it is perfectly fine. What's the problem?

Becca

Are you using a cracked launcher? If so, you'll need a real Minecraft account in order to log into this server. You can buy the game here: https://minecraft.net/....net/store

As of the answering of this question (12/3/2013 at 10:51 AM EST), Mineplex is up and running, so the problem may be on your end. Check your router settings.

Bb Major