I woke up this morning to find none of my devices were connected to wifi anymore (and indeed all 3 of my SSIDs could not be seen). Walking over to my router (TP Link Archer C6, only about 3 days old running the latest release 22.03), I found none of the LEDs were on the front.
Power cycling the router has resolved all this. I had a look at the system logs and see that logs stopped around 19:30(ish) last night with nothing suspicious leading up to the logs stopping. However, I was happily using the internet until about 1am so everything was still working by then.
Would there be any sort of crash dumps I could retrieve that might suggest what happened?