@David-TP I've attached a screenshot of what I think you asked for.

 

The "Main Bedroom" (X60) is the only unit connected to the internet via a cable modem. There's no network cabling in the house.

 

The Upstairs Gameroom is the other X60 unit, and that pair operated fine but we've been having some company (family) stay for extended time and since they stayed upstairs and worked remotely, often continuously for extended hours and a week stay or longer, I thought adding a couple more units would be better, so added one in the Office and one of the [now] spare, upstairs bedrooms, where they usually would stay.

 

They usually return to green for some period of time - I can't say why or what actiivty does it, but often just monitoring one in the app shows activity, even though the red light is blinking, and then it's green, but a bit later it's red. Sometimes even the upstairs X60 goes red. I do get notices on my upstairs iMac that internet connectivity is poor or even gone sometimes - it's the computer I use for big uploads/downloads (some a/v work/hobby).

 

When I got up and started to respond to this, the Main Bedroom and Office (W6000) were green - had not gone upstairs, but the chart suggetsted eveything was fine. While sitting here the one in the Office turned red. I went upstairs and both the Gameroom and Bedroom (W6000) are also blinking red. The Main Bedroom is still green.

 

So do I simply swap one of the W6000 and Main Bedroom X60, i.e., so a W6000 is the one connected to the internet?  

 

 

Any more thoughts on this? Reading though other posts with similar problems, it seems that mixing types of units or adding dissimilar ones after the initial setup is not generally advisable.