For computers from the early to mid 2010s in particular, the wifi card might be reported as not fitted or working. try these steps.
Reset the SMC Reset the PRAM Remove the file: /etc/sysctl.conf The problem might be wifi/Bluetooth cable, it runs over the disc drive and is prone to failure.
My latest blog post: End of Another Error: I have go to say that this is both a happy and sad milestone in my life. (posted 2025-12-19). Warning: mysqli_connect(): MySQL server has gone away in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51
Warning: mysqli_connect(): Error while reading greeting packet. PID=50415 in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51
Warning: mysqli_connect(): (HY000/2006): MySQL server has gone away in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51
Warning: mysqli_error() expects parameter 1 to be mysqli, boolean given in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 52
Could not connect to MySQL:
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