@Marvin_S Thanks, is this the old problem that the MR600 constantly switches between 4G and 4G+? This has been known to TP-Link for several years now (pls check numerous previous posts). I understand...

@miravallesg Just seen this, I have not seen any OpenWRT for MR600 v3. And given TP-Links lack of interest (competence?) I doubt it that they will support this... Never again any TP-Link product.

@Sunshine Sunshine wrote @solocal Hi, The new firmware Archer MR600(EU)_V2_220826 still supports 4G+. It defaults to using 4G for low-bandwidth network activities and will switch to 4G+ for high...

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