I've just spent the past few days working a wifi connectivity problem after installing Parallels.
Background:
Macbook Pro, late 2008 model running Yosemite 10.10.3.
Problem:
No wifi connectivity issues prior to installing Parallels. None, zip, zero, nada.
Good wifi connectivity with non-encrypted communications such as printers, ping, traceroute, etc.
NO wifi connectivity with anything that required encryption, such as https.
Re-installation of the OS did NOT resolve the problem.
Resetting the NVRAM did NOT resolve the problem.
After a lot of troubleshooting, I nailed the issue down to invalid SSL certificates.
Resolution:
More troubleshooting and I nailed it down to Parallels somehow screwing with the system clock during installation such that was slightly wrong, causing SSL certificate errors.
I went into Time & Date Preferences and disabled then re-enabled the "Set Time & Date Automatically" setting and my connectivity problems went away.
I hope this saves somebody else the days of frustration I just experienced.
Background:
Macbook Pro, late 2008 model running Yosemite 10.10.3.
Problem:
No wifi connectivity issues prior to installing Parallels. None, zip, zero, nada.
Good wifi connectivity with non-encrypted communications such as printers, ping, traceroute, etc.
NO wifi connectivity with anything that required encryption, such as https.
Re-installation of the OS did NOT resolve the problem.
Resetting the NVRAM did NOT resolve the problem.
After a lot of troubleshooting, I nailed the issue down to invalid SSL certificates.
Resolution:
More troubleshooting and I nailed it down to Parallels somehow screwing with the system clock during installation such that was slightly wrong, causing SSL certificate errors.
I went into Time & Date Preferences and disabled then re-enabled the "Set Time & Date Automatically" setting and my connectivity problems went away.
I hope this saves somebody else the days of frustration I just experienced.