I have a Mid 2010 MacBook Pro, running macOS High Sierra. Recently, the Wi-Fi suddenly stopped working and won't turn on again. I have tried these solutions:
Removing AirPort config files from
Removing Wi-Fi and adding it again from System Preferences → Network.
Resetting PRAM while booting.
All of these work temporally, but again after a while (10 to 30 minutes of using Web) the problem re-appears.
Any idea as to what the problem is and how can it be solved?