Wi-Fi Issues Continue For OS X Users Despite Updates
itwbennett writes: Although Apple has never officially acknowledged issues surrounding Yosemite and Wi-Fi connectivity, the company is clearly aware of the problem: Leading off the improvements offered in the update 10.10.2 update released Tuesday was 'resolves an issue that might cause Wi-Fi to disconnect,' according to the release notes. Despite this, Apple's support forum was filled with tales of frustrated users. And Mac owners aren't the only Apple users experiencing wireless connection failures after updating their OS. Wi-Fi connectivity issues have also dogged iOS 8 since Apple released the mobile OS on Sept. 17.
I found resetting the NVRAM fixing the problem. The process: 1) Shut down your Mac. 2) Locate the following keys on the keyboard: Command, Option, P, and R. 3) Turn on your Mac. 4) Press and hold the Command-Option-P-R keys immediately after you hear the startup sound. 5) Hold these keys until the computer restarts and you hear the startup sound for a second time. 6) Release the keys.