I have an issue i felt it is weird, i have Quectel EG25-G dev kit. I generally use on windows both the main port(serial) and AT port. works fine in sending at commands. when i connected with the ubuntu machine it is not able to send the at commands with serial port. I need why it is not able to send and how to solve this. I have given permissions to the devices /ttyUSB which it detected. i am able to use internet from the LTE modem on ubuntu as it is showing mobile broadband directly.
Other part of question is i actually wanted it in raspberry pi, so i connected kit to pi there also it was showing wwan interface and giving me ip address but i am not able to get internet out of it.