Heya,
Currently the server status for Gems of War is stable. I would suggest trying the troubleshooting steps here to see if they help solve the issue:
If these steps don’t solve the issue for you it would suggest that the issue is somewhere between your location and the game servers, in which case we just have to wait for whichever company in the middle to resolve the issue, usually this doesn’t take more than a few hours (although I know you’ve been having problems for 3 hours already.
Another step you can take is contacting your ISP - but if you’re able to connect to other web services then most likely your ISP won’t be able to assist I think and it will just be a waiting game.
I did do a bit of a google just now and it seems there may be several companies affected by issues right now in the USA including Instagram and Microsoft as well (if you’re in the USA). Our game servers are also located in the USA so there may be a problem somewhere along the connection to them.
Sorry connection issues are frustrating!