Macbook Pro Mid 2012. The problem was there before upgrade, but recently upgraded to Mojave ( thought it might fix it )
I suspect a bad WiFi card, but the symptoms are very strange, and does not indicate the "Hardware Not Found" error.
• On Boot, WiFi works great, but will shut off anywhere from 30 minutes to 3 hours.
•The WiFi states that it is OFF, and I cannot turn it on via restarting the wireless service via command line or System preferences. Pressing the "Turn Wi-Fi On" button does nothing. The only way to fix is a power off and power on.
•The same problem has occurred on both recovery OS, a system update, and a fresh install ( booted off a different hard drive with a fresh install of MAC), so I have confirmed not a software issue.
•The WiFi Diagnostics tool has not returned anything useful except something along the lines of "enable WiFi and connect to a WiFi network".
•Resetted SMC / PRAM, still have issue
•The well-known typical "hardware not found" message has rarely shown up, I may have seen this happen once, but it is usually the strange problem with WiFi not being able to turn on, not a hardware error message.
The only difference is the Country code is set to "X0" whenever it is not working, but was pointed out that I need to connect to network for country code to be found.
EDIT: Output of
log show --predicate '(processImagePath contains "kernel") && (eventMessage contains "AirPort: Link Down")' --style syslog --last 1d
What are the next steps I can take to diagnose this problem?