@Michael99999 The TP-Link RE605X can extend your cell phone hotspot, but it requires a specific setup process. Because most phone hotspots lack a WPS button, you cannot use the standard plug-and-pair...

@tahmeed702 A newer FW release for this model would be highly unlikely to be found these days. The last time it was possible, was on the russian support portal, which is already decommissioned. My...

@Astyn26 If the WAN port is not faulty, this usually comes down to a bad cabling. Use a brand new CAT 5E cable (the one from the router kit preferably).

That's a good point, because I just saw this feature request - it's for another device, but it has a useful link to a thread summurizing the ethernet backhaul capable devices - here. It also confirms...

@philgiom No worries - here's some more useful info.

@NIckS101 If you are using a wireless backhaul for all those three devices, your best shot would be to change that with an ethernet backhaul. I believe that all three devices support an Easymesh...