RPi 3+ Wifi issue

I’ve been using OSMC on my RPi3+ for over a year now without much issues, but couple of months ago I started having Wifi connectivity issues. What happens is that OSMC complains that an update has failed, I can still connect to it over Wifi, but once I reboot I lose connection and no matter what guide I’ve tried, I cannot seem to get OSMC back online. Wired connection works still fine, but the only way I can get the wifi back working is to re-install OSMC. This happens every few weeks.

Could my Wifi chip be faulty?

That seems strange.
Some logs might provide clues.

Any suggestion which logs I should dig up?

All would be ideal.