@Dwells Hi, I saw you have another topic and I have already replied you, please have a check: https://community.tp-link.com/en/home/forum/topic/598122

@johneli Hi, may I have a screenshot of the Advanced->Status page and Advanced->Network->Internet page on web interface of your MR600? Besides, those TV, wifi termometer and heater are unable to...

@chaplin1 Hi, during that time, may I know if it is stay connected to the Ethernet WAN? or the Ethernet WAN has been down? Besides, if Ethernet WAN is down and it is using 4G backup internet, it will...

@Dwells Based on the system log, the LTE connection is stable, may I know the ping packet loss issue happens only via WiFi or via LAN connection as well? If you ping the LAN IP address of the...

@MarieN Hi, the screenshots seem all connected, and even the system log shows everything is fine. You mentioned that the smart SIM works in other devices, may I know what devices did you test?...

@NeillyK65 Hi, the power supply of MR600 should be 12V 1.5A, and here is the regular size of the coaxial plug of the power adapter: 2.1*5.5*9.0 mm