I'm happy to report back that MVC's solution is now working as expected on my cMP 4.1!
WiFi now works equally in Mavericks and Yosemite. I'm even getting better connectivity, outpacing the effective bandwidth I had with the original card, and Handoff is also available.
1st received WiFi/BT card was apparently faulty. I received a replacement one from MVC and got it installed so much quicker than the 1st time.
WiFi now works equally in Mavericks and Yosemite. I'm even getting better connectivity, outpacing the effective bandwidth I had with the original card, and Handoff is also available.
1st received WiFi/BT card was apparently faulty. I received a replacement one from MVC and got it installed so much quicker than the 1st time.