your service provider might be blocking the connections. i will share a example with you. (Hope you'll understand this example). The main purpose of windows firewall is to block and allow incoming traffic and outgoing traffic. this are extremely important because it blocks bad or unallowed traffic into your pc that might infect it. "I think!..." that your new service provider might be blocking some important connections that the game (mcpc) needs to connect to other servers.
-- go back to your other service provider
-- contact the one your using right now and ask them if they know what the problem could be (present your problem to them)
-- try to connect to other servers and see if it connects. if it does then it's the pacific server thats blocking it.
Have you tried different phones or devices? If you PC can connect to the servers than I think that might be the devices that are having the issue. If you have any android devices try these also. And try updating the ipad to the latest ios version.