I’ve had the nest Wi-Fi platform operating without issue for quite awhile now. It’s the 3 pack (1 router and 2 points) and then I added another point awhile back - all running pretty much without a hiccup for the last year. I recently purchased another point and added the device and then lost all connectivity - Wi-Fi up , connection to internet down. After much checking the router has for some reason gone offline and into setup mode (white pulsing light) - this means you basically have to build your network backup from scratch again (which I did) and have now been able to recreate the exact same result - network is fine with 3 points, adding the 4th point causes the router to go into setup mode (and all connectivity of course gone) - anyone seen or heard of this issue?
Some general guidance: