Well, it sounds like you've done all the usual things. I've checked mine, and it's working, so it is probaby not the server.
Try a reset.
If that does not work, the only settings I can think of that might make a difference are the Location settings and Notifications settings. You could try turning those on/off for the app.
And if that does not work, I'd try the delete the app and reinstall again. Only I'd do a restart both after the delete and after the reinstal. Not that I have any idea if that would make a difference.
Good luck.
Restart: Hold down the power button until the power off slider appears. Slide it off. When the iPad finishes shutting down, hold down the power button again until the Apple logo appears.
Reset: Hold down the power and home button at the same time until the Apple logo appears. It should reboot. Takes a bit longer than a normal restart.