Lets merge it.
@Jerry describe there that problems are USB and write that router is “hot”. At least I don’t experience that my router would be hot, and I don’t think, that 10 sec without power would be helpful. Also he have Turris 1.0, not Omnia
To me it seems to, that this cut of power is doing something like hard reset - leds start at max brightness and 5GHz work, instead of soft-reboot where leds are at same state like before reboot and 5GHz is continue not working.