2.4 GHz unavailable

[JV78]

I had a strange encounter regarding the router today. I've got a TP-Link Archer C7 v2 with Gargoyle 1.10 which has been running very smoothly for over a year now.
Today, I changed the reboot time cuz my son like to play games at night.
No fuzz, I change it from 02.00 AM to 04.00 AM and all of the sudden the router becomes unstable. I lost connection two times on the 2.4 GHz channel but the 5GHz was still reachable according to my son.
Any thoughts on the cause for all this? I've turned reboot off and see what happens but I'm just curious how such a small change in settings can cause this. Or is it just coincidence? Don't believe in coincidence..

[ispyisail]

you might need to reset/reflash

Sometimes the config can become corrupt

1.12.0 is also a good option

[JV78]

I flashed the router to 1.12 and everything works like a charm again, thanks. I ran into some other issues though but this probably isn't the right topic.