I also have the same issue, except my 'Mobile network state' is completely disconnected. I'm on T&L at the moment, I've tried resetting my APN settings and did a complete restore but still the same. Any help please?
I'm trying to install this ROM, however when I try to apply it through CWM, I get this error message: E: Can't open /sdcard/PerformanceRomV4.2c_signed-Blue_ICS_themed-Links2SD.zip (bad) Installation Aborted. Help? And CWM is v126.96.36.199 Never mind, I've just realised that the ROM was corrupted aha, I'll wait till it's been uploaded again.