disconnected cellular network state topic

Hi all! I have a small problem, I have an at&t HTC One (M8) unlocked, rooted s-off. I recently just purchased it and did all this as well as flashing the Skydragon GPE rom for it all before activating the phone with the carrier. I have now activated it and can make and receive calls and texts, but NO data.

Network
AT&T

Signal Strength
-81dbm 16asu

Cellular Network Type
unknown

Service State
in service

Cellular Network State
disconnected

...Thanks in advance for any help or suggestions, it's highly appreciated!