Default [Q] Cannot connect to mobile data EE

Hello,

I cannot get the phone to connect to any mobile datta. 2G, 3G and 4G. I am on EE UK.

I have checked my APN and this seems correct. I am getting a phone signal and can make incoming and outgoing calls.

Wi-fi works fully.

I have installed CM11 Nightly the latest one I only got the phone yesterday. I have restored my original backup and still no luck.

EE technical said everything is fine on my account.

Anyone any ideas. Thanks a lot.