Hello,

I have just purchased and installed a Deco P9 three-pack.

I am very disappointed by the diagnostic tools available. 

1. First, I was really surprised that there is no web interface, the phone app is fine, but way more clunky to configure a host of settings and generally get your system installed and working well.
2. The app gives me no information about the signal strength or data rates between the P9 nodes. I want to know what band are the DECO units backhaul links working on, is the wifi and power line backhaul working? And how fast and stable are those connections? How else am I supposed to arrange the nodes within the house?
3. The app also gives no information on which DECO node, and on what standard a particular device is connecting to, further complicating debug if a certain device is having poor performance

Googling around the place I see app screenshots of other Deco models that seem to give more information, but the P9 app gives you nothing more than "working well", which is rubbish as you can turn a P9 unit off and it takes minutes to update that status.

I had to install a bunch of iperf3 clients/serves and run around the house trying to adjust the positions in a very ad-hoc manner. This significantly improved the performance but most of your customers won't know how to do this and would have been disappointed by the initial performance I was getting. I am still yet to see who stable everything is.

Another annoying issue is that the DHCP controls are very primitive, you cannot define the range of the IP addresses it hands out. It feels like the firmware for this product is still half baked and badly needs further work.