That's no WiFi or connection issue. Apparently the patch update has some missing files even after downloading. You need to copy and paste few specific folders(missing files) of mcoc to your device from another user(who's able to login). Clear app data and try a fresh login. There's a YouTube video on the same. Worked for me. Good luck
Please uninstall, then reboot your device, and attempt to reinstall the game. If this does not resolve the issue, please do contact our Support Team, as they are able to review your in-game account and may be able to assist further.
Comments
SkiTzO, what are you doing about it? I can't get in touch with Kabam help center.
I can't log in whether I'm connected to wiFi or using my phone service.
You can get to our Support Pages on the web at this link: http://kabam.force.com/PKB .