I can't connect to ANY Minecraft servers?

For the past few days I have been playing on a server and it's been running fine until this morning, I woke up and couldn't access my laptop, I took it to the store and since it was under warranty they exchanged it since I just got it a few days ago.

I installed Minecraft and updated Java on the new computer, then tried to log on to the server and it came up with the message "java.net.ConnectException: Connection timed out: no further information!" I thought it may have just been the server was shut down for repair(because it says on their site that they were planning a 2 hour reboot), so I tried a few other servers and got the same results. I honestly don't know what else to do, please help me?

Run Minecraft with administration privileges