I've even tried switching by ipad DNS to Google... Still unable to connect. Oddly enough, VainGlory is exhibiting the same issue. All other internet access works perfectly whether it's browsing or gaming.
It's the only app on the device that cant connect. There are no comms issues on the device. Reinstall, reboot, reset...all make no difference. Have also noticed that a number of Android users are reporting this error as well.