Hello. Tracker TK102B clone stopped working. It worked under IP 220.127.116.11, port 20504 and device IB-GT102. It had been working for a long time but it stopped working two weeks ago. I tasted tracker on 18.104.22.168 20504 and the packets arrived to the server but tracker is not visible on 22.214.171.124 in the application. Could you advise how to solve the problem? Thank you.