OSX Yosemite Wifi issues

See also Re: Magic Mouse disconnects, Yosemite (OS X 10.10) killed my WiFi , MacBook Pro update to Yosemite breaks Magic Mouse, etc.

I too got WiFi to work by disabling Bluetooth, though that's far from ideal since I generally use a Magic Mouse.

restarted a 2nd time just to double check and let sleep...seems to work thus far.😎

The good folks at the Apple Helpline:

Open Finder > Choose Go From the menu at the top of the screen > Click on Computer > Double Click on Macintosh HD > Double Click on Library > Double Click on Preferences > Click once on the file called "SystemConfirguration" > CMD+DEL the file > Enter your password > restart. https://discussions.apple.com/thread/6601075?answerId=26907035022#26907035022

I had the same issue. But it did not occur until 4 days after upgrading. I resolved the issue by zapping the PRAM (CMD+OPT+P+R) keep holding the keys down until you have heard for Startup Chimes. It takes about 2 to 5 minutes depending on your mac. Reference this article from Apple:

OS X Mavericks: Reset your computer’s PRAM

Loading a web page was also extremely slow for me. Speedtest on my iphone and Ipad was showing 20 Mbps whereas it was only showing 4 Mbps on my Mc Book Pro (Retina display - Yosemite).

I noticed that turning Bluetooth off was solving the issue but this was not an acceptable solution for me because I need Bluetooth to connect external devices.

I tried several solutions mentioned in this thread but the only one that solved the issue is a PRAM Reset.

The following link explains how to reset PRAM. OS X Mavericks: Reset your computer’s PRA

I hope this will also work for you

Good luck!!!!

PJWilkin wrote:

I'm hoping more of the Tech News sites pick this up and shame apple into admitting the problems with Yosemite, faults their support staff seem unwilling confirm exist or are Yosemite's fault

This issue problems with amd gpu on early 2011 macbook pro has been going on since 2012, has been picked up by many Tech News sites, but the only acknowledgement is iMac-specific iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program. MBPs which have AMD like the following

MacBook Pro (15-inch, Early 2011) - Technical Specifications

AMD Radeon HD 6490M graphics processor with 256MB of GDDR5 memory on 2.0GHz configuration; or AMD Radeon HD 6750M graphics processor with 1GB of GDDR5 memory on 2.2GHz configuration

have no recall despite being widely publicized.

To Apple's credit they have had several recalls, but this specific AMD one has been long-standing one for a long time.

jeromebob wrote:

Tim Cook needs to STEP DOWN....... Apple needs real leadership. ...... nothing but disasters since he took over. Been an Apple customer since the first Mac came out...... ready to chuck…

These two https://www.apple.com/uk/pr/bios/craig-federighi.html and https://www.apple.com/uk/pr/bios/dan-riccio.html are more deserving of the proverbial door. 😉

Innovation by Wall Street calendar and stock prices is a disaster. 😢

I have tried everything suggested in this thread. Nothing has worked for me.

As far as I am concerned the problems first started with an update of Mavericks about two months ago, and I was not alone.

Maverick Wi-Fi keeps dropping!

(note the similarity of the fixes)

I was hoping Yosemite might have resolved the problem. I am disappointed.

So, personally I don't think this is a Yosemite specific issue, although it may seem so if it first appeared upon your upgrade from Mavericks.

What I find strange is that when the WiFi drops it is impossible to reconnect without a restart (or repeated restarts). Why ?

The problem for me is also very router specific, and other computers running Windows or devices running iOS are unaffected on the same router.

So the problem seems solely related to Mavericks and now Yosemite OS on some routers.

This is my experience - a router specific issue.

I really don't think this issue is exclusive to Yosemite, although it may seem so if if first appeared when you upgraded to Yosemite.

It started for me with a Mavericks upgrade about 2 months ago. I searched for a solution then and found similar discussions concerning Mavericks and WiFi on these fora

Maverick Wi-Fi keeps dropping!

Apologies for repeating that as I posted it earlier.

None of the fixes suggested in this thread are a solution for me. I hoped an upgrade to Yosemite might be.

I wonder how many users this affects when you combine various OS ?

2 hours ago, I followed the method below that has been described a few times in this thread. I was wary at first about an install from an unknown source, but I did some background research and then 'went for it':

https://sites.google.com/site/osxyosemitewififix/

Since following the above my WiFi has been stable for 120 minutes, which is astounding for me.

I have been very skeptical of all the fixes in this thread as in my experience, the WiFi is so unreliably unreliable that people may be lulled into thinking what they have just done is a fix and so post 'it's fixed' to this thread, and probably don't repost to say it "No, it was only temporary".

[I had tried all the fixes and none worked (for me)]

The WiFi issues predate Yosemite for me and are machine and router specific, although they may have just appeared (for many people) with an install of Yosemite, and so they look like a Yosemite issue. But see the following threads, the first of which refers to the fix in the link above.

http://brielle.sosdg.org/archives/542-Fixing-Wifi-Isses-On-Some-Macs-10.8.x-incl uding-10.8.4.html

Maverick Wi-Fi keeps dropping!

It would be really helpful if Apple acknowledged this and provided a work around or fix.

Just got email from Apple Support:

MacAwesome88 wrote:

To all with Wifi Issues... I don't doubt that Yosemite might have a couple bugs but to say that it's riddled with bugs and Yosemite is Trash is quite self centered and untrue.... I have a non-Retina Mid 2012 MacBook Pro and Upgraded to Yosemite with ZERO problems but I also did a little homework FIRST before the Bi-Polar Mac User Took over.... Here's what I did..

May I draw your attention to Bootcamp and Yosemite upgrade - potential data loss warning? I do not consider these as "couple of bugs". 😉

Ran CleanMyMac First in Mavericks... then Rebooted.... then Installed Yosemite... and all App Updates - One at a Time....not all at once...

You may want to read the Community's opinion about this specific tool.

Ran CleanMyMac First in Mavericks... then Rebooted.... then Installed Yosemite... and all App Updates - One at a Time....not all at once...

Then Rebooted into Recovery Mode and Ran Disk Utility to Repair Permissions then launched into Yosemite

Should this not belong in Apple documentation for Yosemite upgrade, rather than a user forum with

64231 Views/621 RepliesLatest reply: Oct 28, 2014 7:38 PM

Are you aware of iTunes 11.4 issues? Apple does make good products, but the quality, of late, is not what made them what they are today. 😉

Your problems are very similar to the ones I was experiencing, repeated drops that were a combination of machine and router (one machine, Macbook pro 15" early 2011 connecting to one make of router (BT Home Hub, models 2, 3 and 4). The Macbook had no problems with other routers. Other computers (Mac OS and Windows) had no problem with the BT Home Hub.

The difference between us is that the problems for me started with a Mavericks update and persisted when I installed Yosemite.

I installed the kext file in this thread and it cured the drop outs on the 2011 MacBook Pro

https://sites.google.com/site/osxyosemitewififix/

You can see some background here (Apologies for repeating information I have already posted)

http://brielle.sosdg.org/archives/542-Fixing-Wifi-Isses-On-Some-Macs-10.8.x-incl uding-10.8.4.html

Maverick Wi-Fi keeps dropping!

I have had stable WiFi for 2 days now. I remain concerned that I installed a fix from an anonymous site. DYOR.

However, I now find there is another WiFi issue.

If I close the laptop and reopen it while it is running, I find the WiFi has turned off and will not turn on. Only a restart cures this.

In contrast, putting the laptop to sleep from the apple menu does not cause the wifi to turn off or drop.

I think this issue was also probably present among the drop outs, but I saw it as 'one and the same'. I have not tried to fix this problem as I rarely close my laptop without shutting it down as well. That doesn't excuse it though.

I think there is "a bit of a coming together" of lots of issues around WiFi in OS and hardware, that needs attention from Apple.

MacAwesome88 wrote:

I've Used CleanMyMac (along with appropriate updates per operating system) A hundred times and along with Onyx... over the past 2 years with ABSOLUTELY NO Problems on the Cheapest MacBook Pro: a 2012 Non Retina 2.3 Ghz.. (16GB Added a Year Later)

My System Runs Like a Greyhound... and I use very intensive Apps Every Day Like Adobe Creative Cloud 2014... Final Cut Pro, Logic Pro... etc.

People gotta understand that the postings here are a SMALL MINORITY of Mac Users... what 10 - 20 postings about CleanMyMac and other APPS out of Millions of Happy Macsters... I believe 90% of the problems posted are people tinkering around like I used to do and got Bit now they wanna Blame someone.

The choice of tools that you use is your to make, at least you have a choice. Please see Is Clean My Mac 2 helpful for speeding up at Macbook Pro?

Glad to see you have a "purring" Mac, but others do not. At least forums have postings, biases and all. Such views, even if they are diametrically opposite to yours, should be respected. The volume of posts is 640+, but views are 67K (10x postings). This should be an indicator of what can potentially be wrong with 67K viewers, with only 10% posting to participate. Non-participation does not mean others do not have issues. For posters who do not have a working system, such discussions should continue. Your input is one more voice, positive or negative. Experiences may differ.

Your specific WiFi environment does not cause you problems, but someone else's does.

David

It's a mac hardware / OS issue in my opinion.

Irrespective, have a look at my posts on this thread and I think you will find a similar experience and a resolution, although DYOR to satisfy yourself about the kext file.

I have had normal, stable WiFi for 2 days now.

Briefly,

https://sites.google.com/site/osxyosemitewififix/

You can see some background here (Apologies for repeating information I have already posted)

http://brielle.sosdg.org/archives/542-Fixing-Wifi-Isses-On-Some-Macs-10.8.x-incl uding-10.8.4.html

Note the issue predates Yosemite, although it has only appeared for some people upon upgrade to Yosemite. There may also be other new WiFi issues with Yosemite, such as I notice the WiFi turns off if I close the laptop and will not reconnect without a restart, this does not happen with a sleep initiated from the apple menu. I don't run any Bluetooth devices, so I can't comment on Bluetooth isssues

Maverick Wi-Fi keeps dropping!

(BTW, BT Home hub ?)

As several people pointed out, there are many different issues being reported here an this thread is no longer practical.

I did identify a very clear, reproducible interaction issue between Bluetooth and WiFi on Yosemite 10.10. I documented it here: Bluetooth interferes with WiFi in Yosemite 10.10 (reproducible). The crux of it is that turning Bluetooth ON lowers the WiFi bandwidth in a noticeable and measurable way (about 50% lower for me). It's as simple as that. Run speed tests with Bluetooth OFF and then again with Bluetooth ON. This works for me every time on two different MacBook Pros. This may or may not be related to other issues people are reporting here, including WiFi disconnections and pointer lag with a MagicMouse, etc.

I disagree with the statement that Apple doesn't listen. They may not be public about what they're doing but they're certainly aware of some of these issues. I personally had a very productive experience with Apple's senior support group today. They looked at the issue thoroughly, involved senior teams, captured a ton of diagnostic information from my computer and promised to follow up.

You have 90 days of support with Yosemite so take advantage of it! Do chat or call Apple with your problem. Explain your issue clearly. Try to find a repeatable way of reproducing the problem. Document it properly and capture as much data as you can. That's the only way Apple can do something about it. Complaining in a discussion forum makes noise and may get noticed, but sending the apple engineering team actionable data is the best way to help them help you. I would imagine that the more people who file issues with similar symptoms, the faster they'll develop a fix for it and release it. 10.10.1 anyone?