I have a problem with this too. I am using LG02 gateway and LGT 92 tracker with frequency US915. I am recieving hex data but it is not showing up on TTN although the gateway is showing at TTN and whenever i enter a valid AT command to the GPS Tracker it shows AT_ERROR which is a generic error. I just type AT and it shows Error. It is also running some cde itself again and again.
