Immortal not connecting PC

I was able to play Immortal no problem up until the beginning of the weekend when I het a message saying check your connection. Since it didn’t want to launch/connect, I re-installed the BNET app, no go, ok so I re-install the game game and after 56GB later, I launch the game and get the same message.! SERIOUSLU! If I had no connection, then how the hell was I able to d/l the game? or how am I here to inform you? Something is fishy here and I’d like it fixed please and thank-you

“Sorry to hear about the connectivity issue with Immortal. Check your network, firewall, and antivirus settings. Restart your router. If problems persist, contact Immortal support for assistance.”