Thanks for prompt reply. Yes, noticed the v5 release, and I wouldn't recommend to anyone buying any TP-Link HW given the complete ignorance and failure to solve this issue...

@Sunshine and all I have just received a FW update notice that a new FW 1.2.0 0.9.1 v0001.0 Build 240716 Rel.54691n is available (MR 600 v3). Has anyone tested this FW? Does this solve the carrier...

@Sunshine Any response, pls? Thx

@daihedz Hi, are you sure that there is an OpenWRT version for the Archer MR600? I understood that the MR600 listed on OpenWRT is a completely different make (not TP-Link). Also, I understood that...

@Roobarb I installed the latest FW (I had previously a beta FW installed, following a discussion with the TPL Support team in Asia). Problem of constant switching between 4G+ and 4G has not been...

@Sunshine I have now installed FW 1.1.0 0.9.1 v0001.0 Build 220727 Rel.74013n, but the problem of constantly (every 1-3 seconds) switching between 4G and 4G+ persists... I have seen the private email...