Wifi Issues in Yosemite

We have seen the same issue with WPA2 Enterprise PEAP connections. Logs indicate that the clients are jumping between APs every few seconds. It's not clear whether they're being dropped from the network, and then reconnecting to another AP, or simply aggressively roaming.

i can confirm the issue too.

My Late 2013 Macbook Pro drops wifi connection on heavy load when i'm connected to WPA2 Enterprise network

At home with AirPort Express all works fine.

The support team diddn't help either.

Just going back to Maverics.

Confirmed for a 2012 MacBook air on a PEAP(MSCHAPv2) connection. My connection drops after about 10 seconds consistently. Works fine on other connection types.

It was hard enough to even get corporate IT to enable an internal Mac network, now an OSX update makes it unstable. I need a patch, because they won't update their network for sure!

Some of our users have seen improvements by disabling Bonjour. In 10.10, this is performed by:

1. Open the file /System/Library/LaunchDaemons/com.apple.discoveryd.plist for editing as root.
2. In the "ProgramArguments" array, beneath the line "<string>asl</string>", add the line "<string>--no-multicast</string>" with appropriate indentation.
3. Reboot and test.

Please be aware that I have no idea what the broader implications of this may be, other than disabling any Bonjour service, including AirPlay, AirPrint, etc. This may cause other issues. (I've noticed that it makes the menubar Airport signal strength indicator inaccurate, and appears to prevent the automatic joining of networks.) Delete the line and reboot to reverse the change.

Dropping multicast packets at the wireless controller does not seem to help.

I have the same problem with my macbook pro 13 late 2013 i!!!!

It's impossible to use wifi at work i need to use another pc! It's a big inconvenience for me!

I'm very disappointed!

Apple solve the problem

This seems to be an issue for me. I find my wifi at my university now unstable and IT finds that I am leaping between two pieces of equipment. Macbook Air 2013 - worked fine with same wifi system until Yosemite update. Seems like a software issue

I am so disappointed! Does this mean Apple has abandoned old Mac users? This is my one and only one machine, and I do all my school work on it, and its not even connected to the Internet!

I switched my router from 2.4GHz to 5GHz and that appears to have resolved the issue. No more of those error message on my console.

Same problem on my iPhone 5S iOS 8. WPA2 Enterprise repeatedly disconnects and reconnects while WPA2 Personal is stable. I have two SSIDs on my Cisco AP that uses each encryption respectively. I can only stay connected to the WPA2 Personal SSID.

I think enabling "Band Steering" (where the AP won't respond to 2.4 GHz requests if it also receives a 5 GHz request) or simply disabling either 2.4 GHz or 5 GHz is the solution.

I have been struggling with this dog-turd 10.10.1 for several hours trying to get the wifi to work. It now does, but I may just vent a little by saying that I have had a guts full of Apple putting out overpriced substandard crap like this. I was totally Mac everything for many years but recently both Apple's politics and their nagging legacy and continuation of arrogance has really pushed me outside of the reality distortion field. This is a com pay with billions in the bank yet they a so pathetic that they cannot test their software prior to release. Sure it is hard to find and eradicate all bugs but the number of people having wifi problems is Yosemite is disgraceful and speaks of Apple's incompetence.

For all the other poor suckers out there who have also wasted considerable time (which I'm sure Apple won't pay recompense but would be happy to charge you $$$ to have their agents try to fix it) I will tell you what I did.

First, I went to my wifi and under Network...Advanced and renewed the DHCP, only to find that it was providing an address outside of my network range. So I set the IP4 setting to manual and entered a valid IP address (192.168.1.123 in my case) with subnet mask 255.255.255.0 and router 192.168.1.1, okayed that then Apply, and now the wifi is working again.

**** you Apple. The above and so many other annoyances in recent times are driving me back toward Microsoft. Windows 10 is becoming more appetizing by the day.

I've got the same problem.

Actually I have followed the URL (http://osxdaily.com/2014/10/25/fix-wi-fi-problems-os-x-yosemite/) to reset wireless but failed.

I tried to setup from beginning but seems PEAP authentication is not support in Yosemite.

Is it correct?