@rex9500 Hi, please try the beta firmware here to see if it solves the problem.

@NOMBRENEUSO Hi, please follow this thread to see if it could solve the problem: Unstable LTE Connection with Archer MR500 and MR550

@Mick65 Hi, thank you very much for the feedback. We will record your suggestion and report to development team for evaluation.

@amtrakuk Thanks a lot for the update and glad to hear that you've resolved the problem.

@amtrakuk Hi, after the factory reset, please check if network type and signal strength on the MR600 status page to see if it receives any 4G signal, if so, please try creating new profile manully on...

@AF63 If the AX73 router loses internet and cause extender not working stably as well, you could follow this thread to troubleshoot the router: What if TP-Link Router Disconnects from Internet?