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Level 1

12 points

Slow WiFi issues after 10.10.2

I seem to have much much slower WiFi connectivity after the 10.10.2 update on my 2014 MBP 2.8?

It was a bit unreliable before, as it used to drop out quite often, but I was getting 35-40 Mbps average on WiFi,even though I use it in CLAMSHELL mode mostly.(Whilst using Ethernet via Thunderbolt I'd get 95 Mbps to give you some idea of what is possible)

But NOW it's almost unusable, it just lags as if it's connected to a 1 Mbps service...

In fact I've just tested it and it's worse that that!

How on earth have Apple made this happen?

Anyone else have the same issues?

Cheers

MacBook Pro with Retina display, OS X Yosemite (10.10.2), 2.8 GHz Intel i5 - 16GB/1TB SSD

Posted on Jan 29, 2015 3:08 AM

Best reply

Lysin

Level 1

10 points

Posted on Jan 29, 2015 5:48 AM

Hi Dillonphoto,

I had the exact same problem.

Wifi in 10.10.1 was not perfect but it worked.

After the 10.10.2 update it became painfully bad. Dropped packets, pings floating from 100 to 1000's and timeouts, no internet for large amount of times, etc.

I contacted apple support and they said they had no reports of a bug in the last update, and after running numerous tests they suggested I dropped by an apple repair certificated facility to run more tests.

As it turns out, this is a bug with the latest wireless drivers. They may have fixed the WiFI for other but they ruined it for me.

I resolved the issue (temporarily of course) by reverting the wireless driver to the one before the update.

I just hope apple notices the bug and fixes it.

Diogo

Macbook Pro Retina, mid-2014, 2,8 Ghz Intel i5

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82 replies

Feb 5, 2015 3:57 AM in response to Dillonphoto

Thanks for the tip but after following your instructions to the letter my WiFi is no longer recognisable, the message I get is WiFi: No hardware installed!

When copying your file into the folder a number of error messages came up, I have backed up my original file and tried re-installing this but it's not worked. I am on a retina iMac purchased last week...

The message I get when copying and pasting in the folder is:

System extension cannot be used: The system extension "/System/Libraray/Extensions/IO80211Family.kext was installed improperly and cannot be used. Please try reinstalling it or contact the products vendor for an update.

Then an another message comes up saying the same thing but about the files:

/System/Library/Extensions/IO80211Family.kext/Contents/Plugins/AirPortAtheros40. kext

/System/Library/Extensions/IO80211Family.kext/Contents/Plugins/AirPortBrcm4331.k ext

/System/Library/Extensions/IO80211Family.kext/Contents/Plugins/AirPortBrcm4360.k ext

/System/Library/Extensions/IO80211Family.kext/Contents/Plugins/AirPortBrcm43224. kext

/System/Library/Extensions/IO80211Family.kext/Contents/Plugins/IO80211NetBooter. kext

I did repair permissions and have restarted a number of times.

Any ideas anyone?

Feb 5, 2015 4:14 AM in response to AnthonyGaunt

Update:

Solved the issue of dead wifi by backing up and removing prefs as below:

/Library/Preferences/SystemConfiguration/

com.apple.airport.preferences.plist  

com.apple.network.identification.plist

com.apple.wifi.message-tracer.plist 

NetworkInterfaces.plist  preferences.plist

Feb 6, 2015 9:53 AM in response to AnthonyGaunt

Hey mate , can u tell me how did u make the backup for the original folder and how did u replace it with the older folder. thx

Dillonphoto Author

Level 1

12 points

Feb 6, 2015 10:11 AM in response to awesomenezz

It was Lysin who posted this solution, not me, however it did work.

I personally took the 7.0 driver from my Time Machine backup (pre 10.10.2) and replaced the 7.1 one.

I'm still waiting for more conclusive results from Apple having sent them my info.

I suggest you contact them if you're still struggling.

All the best

Dillonphoto Author

Level 1

12 points

Feb 6, 2015 10:13 AM in response to AnthonyGaunt

Not sure if you have WiFi 'on' when you did the swap Anthony?

I had the same error messages as you first time, when I did the driver swap using my Time Machine backup, I think I had WiFi on at the time, so turned it off, and managed to make it work by restarting.

Glad to hear you are sorted now, if you have any continuing issues I'd suggest contacting Apple support.

Cheers

Feb 6, 2015 10:14 AM in response to awesomenezz

I got the update from HKWAY but ran into other issues. I removed the files (not folder) as my post above but just as a precaution I saved them to a folder on the desktop. Once I restarted all the files were re-created by the system and it all works well for me now.

Thanks all!

Feb 6, 2015 10:15 AM in response to Dillonphoto

Hi Dilonphoto, I turned it off as the instructions, think there must just have been a clash somewhere with preferences that were in use, all sorted and works well now since using the v7.0 file 🙂

Dillonphoto Author

Level 1

12 points

Feb 6, 2015 10:16 AM in response to wifiguru

FWIW mine is a Netgear WNR3500Lv2 - with firmware V1.2.0.28_40.0.72

Cheers

amorexes

Level 1

4 points

Feb 7, 2015 8:30 AM in response to Dillonphoto

It's ridiculous, I updated my mac 13' retina early 2013, to 10.10.2 and now I have this RIDICULOUS PROBLEM, there isn't enough engineers to resolve this PROBLEM and quickly???

Feb 10, 2015 8:38 AM in response to Lysin

Thank you Lysin. This solution worked for me with a current Mac Mini. I had no WiFi issues until the 10.2.2 update after which the connection dropped consistently (and my Mac is four feet from the router). I have an Ethernet connection, but the Wi-Fi is still needed to enable some functionality. So far, the connection is holding with the 7.0 driver.

domnick

Level 1

0 points

Feb 11, 2015 9:31 PM in response to HKWAY

Thanks Much. This fixed my issue. I can now browse with ease again. 🙂

ZyreX

Level 1

0 points

Feb 12, 2015 3:21 AM in response to Dillonphoto

I started to experience very slow wifi in thepast 2 days .

I usually get 150 Mbps on 5ghz, and now barely touch 10 . On 2ghz I can't even reach one.

At first I thought it's a problem with my provider, but after a few calls and more test , I realise that internet works fine on my iPhone, iPad, even windows laptop.

The only affected devices were: 2014 Retina Macbook Pro & 2012 Macbook Air .

And that's how I find found this thread.

Trigger or partial solution, thanks to erdincyildizmentioning, is the bluetooth.

Putting everything together , I remembered I activated AirDrop few days ago, exactly when I started experiencing this problems.

So I deactivated the bluetooth, and guess what , everything came back to normal . Wireless is working good again.

Meoqak

Level 1

0 points

Feb 12, 2015 1:40 PM in response to Lysin

Thanks a lot, Lysin!

That helped.

MBP 13" Retina late 2013, 2.6

After 10.10.2 Mac became extremely slow, almost no WiFi. Fails to connect for 10 minutes, drops, sees just one or two APs around.

With WiFi enabled it was ruining (looks like DOS-attack) AP so other devices were not able to use AP too.

Fortunately had TB-to-Ethernet adaptor.

Took old driver from this thread, replaced driver, repaired permissions, rebooted. Now works fine.

Thanks again!

I hope Apple will fix it ASAP.

dokumori

Level 1

0 points

Feb 13, 2015 5:19 AM in response to Lysin

Thanks so much Lysin, your solution solved the issue I had with the update.

Filat315

Level 1

0 points

Feb 15, 2015 12:21 PM in response to Lysin

Thank you very much Lysin! :-) Now my wifi is running normally 🙂

Slow WiFi issues after 10.10.2