@fandangozx I downloaded it. The "One Mesh" disable botton not showing. The problem of this every second in the log is still: USER: Network type is LTE. USER: Network type is LTE PLUS. Internet speed...

No, it is a hardware issue

@PB123 Archer MR600 supports B28 Network Type Link

@francota That is because of Carrier Aggregation in your phone helps achieve better network speed.

@ZdeHou MR600 is supporting CWMP Settings: TR-069

@Rolobot https://www.tp-link.com/en/support/download/archer-mr600/ V3 It is on the box and back of the device