Well, that was easy. M9 arrived today. Took all of 15 minutes to swap over including update. No issues. Very happy with that - good stuff TP-Link!

I have a 3 unit M5 system, with one of the M5 units being used as my main router. The system works well and i now want to expand it by adding a M9. I intend to make the M9 as the main unit. There are...

Petrinho wrote Is possible that the hub switch too much between two nodes, but how can i block this switching? How can i switch off mesh technology for this device? on the device list, tap on your...

Maybe your Harmony hub is switching between the mesh units too much?...is it in the middle of 2 units? Perhaps try and switch off Mesh technology for that device form the device list? Although I'm on...

Mine's still going fine, latest firmware, 2.4 & 5ghz both on.

Could it be the device is attaching to 2.4ghz rather than 5ghz? I have a similar setup (3rd device wired not wireless). I noted that my Galaxy s7 would see a speed drop as it would pick up the 2.4ghz...