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Yosemite (OS X 10.10) killed my WiFi :(

I just updated to Yosemite on a brand new 15" MBP Retina Display. For some reason my WiFi is not working. I turn it on and select the network I want to join (my regular network at home that I've been using with this same computer before updating). So, I turn it on and select the network and doesn't seem to want to join it and then my WiFi switches back off completely.


Is anyone else having problems with their WiFi on Yosemite?

MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10)

Posted on Oct 16, 2014 5:46 PM

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Question marked as Top-ranking reply

Posted on Oct 16, 2014 6:08 PM

Yup, same issue, same machine. Tried wiping the Bluetooth.plist and rebooting but no luck.

294 replies

Nov 17, 2014 10:56 AM in response to nigelgreenlee

The 10.10.1 beta did not work for me. Actually, it made my situation worse and I had to revert to 10.10.0. The only solution that I have found so far that gives me a stable 5 GHz connection is forcing to channel 48. Channels 149 and higher are unstable on my late 2013 15" rMBP. My early 2014 11" MB Air was stable with higher channels.


Don Barar

Nov 17, 2014 1:23 PM in response to Frank Juestel

Great work Apple, nothing has changed. Same problem with 10.10, 10.10.1 (developer version) and 10.10.1 "fixed version".

I cannot believe that Apple is getting issues with this kind of things. I'm really upset. I only can use internet by ethernet or booting Windows. Incredible!

I think I'm going to downgrade to Mavericks until I buy another Mac.

Nov 18, 2014 5:56 AM in response to FloridaMason

10.10.1 doesn't work for me :-(


Hi, 10.10.1 doesn't work for me. The first five minutes work great, than the problem comes again. I have to switch of WLAN. Bluetooth only works fine.

I've send Apple detail diagnostic files on there request this morning. Hope Apple can fix it. Maybe there are different ChipSets in our MacBooks and they only fixed it for some of them.


Kind regards

Franky

Nov 18, 2014 8:29 AM in response to nigelgreenlee

The issue was resolved for me (MP retire 15 late 2014). I had issues only with WPA2-Entreprise WiFi. Installing the update only did not work at first. I had to delete the preference files in the library/preferences/systempreferences first and reboot. I have had my connection for nearly 3 hours now, compared to the paltry 1 or 2 minutes segments. I would suggest folks try to install the update and follow the instructions posted everywhere on deleting and refreshing the preference files related to WiFi.

Nov 20, 2014 7:23 AM in response to GalagBasha

Strike Two Yosemite.

After installing the 10.10.1 update, I still cannot stay connected to my Wireless Adapter for more than 15 seconds.

My Windows computer is connected just fine.

My 2011 MacBook Pro is now tethered across my room to my adapter box with an Ethernet cable.

I cannot believe that Apple has put out an operation system with crippled Wi-Fi code.

I did not have Wi-Fi connection issues with Mavericks.

The reason I switched from Windows to Apple is to avoid poor products and operating systems.

When Steve was at the helm this kind of incompetence was not tolerated.

I'm sorry to say I have lost faith in Apple after this upgrade ( downgrade ).

The Yosemite Manager should give his team one more strike before retiring them.

Yosemite (OS X 10.10) killed my WiFi :(

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