Your Internet Service Provider (ISP) translates internet addresses from a human-readable address (like help.ea.com) to a computer-readable one (a string of numbers) using a sort of reverse phone-book known as a Domain Name System. If something goes wrong with the DNS you are using, you can have a terrible time trying to connect to the internet.
https://help.ea.com/en-us/help/faq/connection-troubleshooting-basic/