I've had connectivity problems non-stop on this computer for the past two weeks. I've tried everything from the OP, and none of it worked. I've tried running osu in administrator mode, windows XP compatibility mode, uninstalling and reinstalling, and even turning off my firewall while osu was running. None of it worked, as I still get the "Connection failed. Retrying in 30 seconds..." message. Any help would be appreciated.