Default [Q] No Data after Flashing Custom Rom

Kind of long, but it's just a difficult explanation, please read and try to help me. Thank you.

Okay, so I have a really weird problem, and I can't seem to fix it at all. I unlocked the bootloader and rooted my Sprint Motorola Photon Q, and had no problem with data loss, then I flashed PAC Man Rom, and everything went fine and it flashed but then I noticed that I had no data. No 3G, 4G, or 4G LTE, the phone lost network signal, but what was weird is that I could still receive texts and phone calls.

So, then I read that wiping the Dalvik and the regular cache would fix it, and it didn't. Then, I also tried flashing a different ROM which also didn't fix it. I RSD back to stock firmware and the problem was gone. I even tried rerooting and just installing a different ROM but, it still had the same issue, so I just went back to stock again.

Can someone please help me fix this? I've looked everywhere and I can't really find anything to help me out with this.

Thank you in advance.