Unhappy [Q] Viper ROM 1.6 Sprint M8

Viper ROM 1.6 doesn't seem to connect to Sprint Network. Upon 1st boot device appears fine, after a day or 3 (even a few mins), loses connection, no phone calls, send nor receive and no data connection. I do get LTE and SPARK icon if i do a sprint android reset. But never lasts long. Contacted sprint service and was told its the issue of the phone (ROM Issue)

great my 9th post maybe one more so i can post to the needed developers page instead of theses lame rules