Im on Viper Rom 6.2.1 Rom, Elite Lunar Kernel, and latest OTA radio.
My 4G connection is great when connected, I hit the 40s and 50s download speed.
The problem im having is that when the data connection is idle for like 30 seconds, all of a sudden I lose data connection. the 4G LTE logo is still showing but the download/upload activity arrows no longer flashes. It goes back when I turn mobile data off then on again. Then I lose connection again when idle.
What could be the problem?