If you've tried everything else related to whatever machines you can get a hold of, the problem could be due to bad/poor routing. In those cases, try using a (or if you already are, stop using or use a different) VPN to see if that gets around whatever problem exists between your ISP and Inno's servers. Or if you have a different way to connect to the internet, try using that?
Personally, I'd rather not do that; most of my problems (whenever they occur) are usually fixed by (in order of wanting to do it):
1. Restarting my browser.
2. Use a different browser. (went Chrome, never went back for this game. Firefox for just about everything else)
3. Reset network connections.
4. Turn computer off then on again.
5. Get up, walk to the router, then give it a swift kick turn it off then on again.
6. Try again later because I sure as heck know my ISP (AT&T) will make me wait on the phone longer than the problem will persist.
EDIT: As far as mobile goes, the only thing I really know how to do is either
0. Kill the app, then run it again
1. Turn on airplane mode, then turn it off again.
2. Turn the phone off then on again.