Background: During install, I had to split 2.4/5ghz networks to get some older smart plug devices working. So I have two networks, the VMxxxxxx named 5ghz one, and a 2.4ghz one I added.
Today, spontaneously, every device connected to the 5ghz network stopped working which after some head scratching turned out to be because the 5ghz network had disappeared!.
I moved the critical stuff over to 2.4 in a rush just to try to fix it - then just now had a proper look.
Anyway, it seems the VMxxxxx (I'm writing xxxxxx because I can't remember the number) has renamed itself, and is now called what I assume is the MAC address of the router.
Here it is, connected with the password for the previous VMxxxxx network. So I guess my question is, what the actual flip has happened, why has my wifi renamed itself and broken almost every device in the house, and how do I fix this without having to reconfigure the wifi on every currently broken device in the house?
Before you ask, yes I have rebooted the Hub 3.0 router!
Yeah so now I feel like a fool for not just doing this.
A bit more searching on this forum suggests it's not an entirely uncommon problem for the SSID to change to either just "1" or to change to the MAC address of the router, some sort of firmware bug by the looks of it.