I recently (today) purchased the three pack of the Bt Whole Home WIFI.
I downloaded the app onto my iphone and followed the instructions on the app to connect the first disk to my router (TP-Link Archer C8) running BT Infinity 2 through an Openreach modem. I connected the supplied ethernet cable to the router and powered on the disc. I was met with a purple light which flashed for about 10 seconds and then turned to a blue flashing light which again lasted for about 10 seconds. This blue light then disappeared. I waited for approximately 10 minutes but no light reappeared.
I then looked for the disk in my phone settings and was able to connect to it, but when I followed the next step on the app I was told that the network was not responding and to try again in a few minutes. I waited a further 5 minutes and tried again, but was met with the same message. I was however able to open a browser window and run a Youtube video and a speedtest while connected to the disk.
I then tried the other two disks and the same thing happenned, and after the initail purple/blue lights no light was visible and I was not able to go any further with the app and was told that the network was not responding.
Has anybody else come across this with third party (non-BT) routers and has anybody got any ideas what the issue is?