Intermittent WiFi

[CzesiuB]

Shortly after recent update Dune started "saving energy" on my WiFi... pretty strange, it was appearing and disappearing on the rotuer's devices list like the dam^%$£ed side light.
While trying to "reset" the WiFi, it started saying that the password is incorrect, even while appearing on the router's devices list.
Gave up, downloaded the April Firmware, and... and it did not helped.
The WiFi started working only after the factory reset and setting all things back.
Maybe someone will find it handy...