OSX Yosemite Wifi issues

Let me start by saying that I love this Macbook Pro retina 15". However since upgrading to a "better' modem router, all the wifi issues have started!

Old modem - Billion BiPAC 7800NL

• Considered a basic modem router
• Only has 2.4 GHz wifi band
• Limited to 16 wifi connections (this was pain!)

New modem - TP-Link Archer D7

• Advance modem router
• Has the 5GHz wifi band
• Can assign static IPs to MAC IDs

Now, I get this quite often!

The quickest workaround is to turn wifi on then back on. Pretty average for a $2k laptop!

This never used to happen in the older Billion. So I'm convinced that this is a MBPr connectivity issue

Other workarounds:

• Assigned a static IP to the mac address on the router
• Deleted Wifi network settings and created a new one
• Created new Wifi network and renamed it to Wifi2

As I've read on this thread, the workarounds work temporarily. A day or so then the issue comes back again

Apple please fix this!

I have problem too. I can't connect to 5ghz wifi network after upgrade to OS X Yosemite.

I tried restart time capsule, restart MacBook Pro 15" (mid 2012), remove wifi network from preferred networks - nothing changes :-/

Hello

I have just got off the phone to Apple Support and they have said this type of issues has affected previous operating systems. However, there is a simple fix which we went through which involves resetting the System Management Controller (SMC) and the Parameter Random-Access Memory (PRAM). All seems to be working fine since I did the resets (Maybe even faster!).

To do this go to the following apple support sites -

• Intel-based Macs: Resetting the System Management Controller (SMC)
• OS X Mavericks: Reset your computer’s PRAM

I have a MacBook Pro (Retina, 15-inch, Early 2013), Processor 2.7 GHz Intel Core i7.

I hope that helps.

Savo9 wrote:

Hello

I have just got off the phone to Apple Support and they have said this type of issues has affected previous operating systems. However, there is a simple fix which we went through which involves resetting the System Management Controller (SMC) and the Parameter Random-Access Memory (PRAM). All seems to be working fine since I did the resets (Maybe even faster!).

To do this go to the following apple support sites -

• Intel-based Macs: Resetting the System Management Controller (SMC)
• OS X Mavericks: Reset your computer’s PRAM

I have a MacBook Pro (Retina, 15-inch, Early 2013), Processor 2.7 GHz Intel Core i7.

I hope that helps.

It solved the problem for you? I mean, for how many hours are you online so far without loosing your wifi connection after this procedure?

By the way, did they tell you if they would release a fix (update) for this?

I had the same issue with my iMac.

Started yesterday and spent about an hour on the phone with Apple support trying out about ten different things.

The support guy was very friendly but clearly steered me to issues with the router, my service provider etc.

I kept telling him that all my other iDevices connected without any issues and are able to get on the web.

This evening I kept trying other stuff while going through some blogs. One of them finally spoke about issues with the SMC (system management controller)

The procedure is very simple and documented on Apple support webpage Intel-based Macs: Resetting the System Management Controller (SMC)

I could not believe it after having done the next 5 steps my iMac connected to my WiFi network as if nothing happened ....

1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.

Hope it works for you as well (the support page has also instructions for MacBooks with batteries)

Edit: one thing I did as well, is turning off the continuity feature from my iPhones (not sure it is related) The French blog that guided me to the solution said that this bluetooth feature might interfere with the WiFi connectivity . . . I am reluctant to turn the feature back on. I guess I'll wait till Apple comes out with a point update stating "solving WiFi related issues" :-)

People Still Aren't Downloading iOS 8

Posted: 11/12/2014 4:13 pm EST Updated: 21 minutes ago

Comme

@tim_cook isn't replying on Twitter: I wonder how many of the Apple Board are on twitter or Facebook:

• Arthur D. Levinson, Ph. D.Chairman of the Board, Apple
  Chairman and former CEO
  Genentech
• Tim CookCEO
  Apple
• Millard DrexlerChairman and CEO
  J. Crew
• Albert Gore Jr.Former Vice President of the
  United States
• Robert A. IgerChairman and CEO
  The Walt Disney Company
• Andrea JungPresident and CEO
  Grameen America, Inc.
• Ronald D. Sugar, Ph. D.Former Chairman and CEO
  Northrop Grumman
• Susan L. WagnerCo-founder and Director
  BlackRock

Thanks John

I know I am slow 😕 but when I read this on Apple Support....

"OS X Yosemite: Set WINS options

Set Windows Internet Naming Options options

I can't help wondering whether NetBIOS applies to me; is it because I have a windows running PC within the home network?

Cheers Paul

**** those logout timers; once again the edited version:

Huss417 wrote:

"Try updating to OS X 10.10.2 from the Mac App Store, it addresses different WiFi issues."

This truly just made me laugh out loud. If anything 10.10.2 made the issue worse for me.

That's exactly why I posted this early last morning:

Workaround not yet published in this thread:

Not particularly to you John, but to all concerned here, particularly to those who may have performed a clean install, but migrated old troubles afterward from a Time Machine backup, possibly using Migration Assistant:

Please search for IO80211Family.kext on your Mac. Especially if you have multiple copies of it, check their version numbers. There may be a clash going on here between identically named kernel extensions with different version numbers (7.1 being the most recent) . Revert to IO80211Family.kext 7.0 any way you can, and see what happens. Thrash all other versions, empty thrash and restart. And only 1 version of IO80211Family.kext should reside on your system! Even if you decide to stick to your resident v.7.1. Any duplicate antiquated kext is bound to cause havoc.

Except for 10.10.2 WiFi issue dupes: their salvation may lie in IO80211Family.kext 7.0.

Re: wifi keeps dropping since Yosemite upgrade

In particular if you have not cleanly installed 10.10.2 and have migrated from 10.10.1 using Migration Assistant look for 2 versions of IO80211Family.kext. If you find both v.7.0 and v. 7.1, then delete v. 7.1. If you find only v.7.1, replace it with v. 7.0 and see if things improve.

Some explanation: IO80211Family.kext versions since the Lion one have been reported to cause trouble, in most cases on some iMac models. Reverting to the IO80211Family.kext version -1 after an OSX.(X)X.X+1 version upgrade seems to result in better performance.

And having identically named kernel extensions, even if they have a different version number running in your system is asking for trouble in my book.

Quote from an unallowed source:

"Kext Fix"

I tried copying the IO80211Family.kext from a Mavericks machine, which didn't work. I then restored the original Yosemite IO80211Family.Kext which fixed my Wi-Fi. I used Kext Utility to do this, so I assume some of the 'permission fixing' Kext Utility reforms on /System/Library/Extensions must fix the Wi-Fi.

Kext Utility is available here

1. Open Kext Utility.
2. Let it repair permissions, it will tell you when it's done.
3. Reboot.

If that doesn't work, download the IO80211Family.kext from solution 6. and install that IO80211Family.kext after "Step 2." completes, continue as follows:

1. Test that Wi-Fi is broken, or fixed.
2. Open Kext Utility (if broken still).
3. Drag original IO80211Family.kext back.
4. Reboot.
5. Wi-Fi should be fixed.

Remember that kext files are stored in /System/Library/Extensions, you should make a backup (Kext Utility does do this for you, however) of your original IO80211Family.kext.

Good luck!

OK, 1 more try for the source of the quote to work around these ridiculous censor bots on this forum : it was reddit.com:

http://www.replace.com/r/apple/comments/2jwah7/psa_yosemite_wifi_issues_list_of_possible_fixes/

I'm facing the same issue for my now 2 weeks old 2017 MBP 15".

Seconds after connecting to the 5ghz network, mcs index would drop to zero and tx rate drops to 7 MBPs..

The first few seconds upon connection, i would see tx rate of 878 to 1053 MBPs.. tested on safe mode and recovery mode.. same issue happens.. really vexing.. I'm hoping my 1-1 replacement wouldn't havent this issue

I just tried something, which so far seems to be working. Go in to your Keychain access - System. Find your wireless network - double click. There are two tabs, Attributes & Access Control. Go into the Access Control and check "allow all applications to access this item". Mine was defaulted on confirm before allowing access, which I think was knocking me off every time I tried to do anything.

I'm not sure, but this is the first 10 minute period I haven't been knocked off since upgrading last night. Good luck!

"

I just tried something, which so far seems to be working. Go in to your Keychain access - System. Find your wireless network - double click. There are two tabs, Attributes & Access Control. Go into the Access Control and check "allow all applications to access this item". Mine was defaulted on confirm before allowing access, which I think was knocking me off every time I tried to do anything.

I'm not sure, but this is the first 10 minute period I haven't been knocked off since upgrading last night. Good luck!"

- Tried this, no change.

Having problems with wifi after installing Yosemite?

Yes and it is driving me crazy. I've tried all the reported fixes and nothing sticks. Not changing the location, keychain access, Kext, etc. It may seem like it is changing for a few minutes but it always comes back. And it is across all wifi connections.

MacBook Pro (Retina, 15-inch, Early 2013)

2.7 GHz Intel Core i7

16 GB 1600 MHz DDR3

I've been suffering from this same ailment since I upgraded on Thursday. After much gnashing of teeth (PRAM, SMC, reinstall of Yosemite, etc. etc.) I finally **RESOLVED** it by creating a new Network Location.

*under Network Preferences

*Click drop-down for Location

*Create a new location.. (I called mine "Internet")

*that's it!

hope it helps you too

The problem with my machine was the .plists (see image) Finder>file>find, type .plist in search. Dump the files, do a shutdown and boot up (I also reset the PRAM also) for the heck of it. Probably wouldn't hurt to repair permissio

What a mess huh. There were 4 Bluetooth plists, duplicates and triples of others. Obviously, this is going to cause preferential conflicts when running an app Since I couldn't determine which should, or could be saved, I dumped them all. That means I had to go and reset my important prefs, but it could take APPLE

weeks to resolve this, so I guess it's worth the hassle. THANKS APPLE!!!!!

P.S. While I'm at it, I want my Safari Reset Button back, and put the Clear Cache in there while you're at it. GRRRRRRR!!