[Q] S4 data not working topic

I rooted and flashed my sprint s4 with gummy ROM android 4.4 kitkat. First few weeks it was flawless and everything worked perfectly fine. Now my data is hardly working. Sometimes (very rarely) it might be working but for the most part nothing. It shows all bars enabling me to make calls and text but no data. Id appreciate it if anyone can give me some advice or a solution to the problem. Thanks