Q: OSX Yosemite Wifi issues

Nope, I don't have those files in said folder, and I've been plagued with the connectivity issues since the first install of Yosemite (currently running 10.10.1.)

5 GHz is unusable, it's sort of all right (in specific places) on 2.4 GHz on my mid-2012 MBP. Applied pretty much all "fixes" over the past months, except for messing with system files because I am just a very average user. BT, Handoff turned off. Nothing but an iPhone, a Kindle, and a microwave oven (the latter about 18 feet away) in my very small (hey, this is NYC!) place.

Could someone explain in plain layman's terms why Wi-Fi is destroyed when you install Yosemite? I'm lost with all the tech talk - I just want my computer to stay online and WORK like it did before I put on Yosemite. I'm not one to complain about design changes, sometimes I like them, other times I don't, but it's a tool to use, and the look of folders and window bars is less important than having a FUNCTIONING MAC. Why Apple would release an OS (again) that is riddled with bugs is beyond me, but in today's day and age, EVERYTHING needs Internet/Wi-Fi - its like upgrading your car but, but "Oh, it doesn't have wheels until a future update." What? The whole point of an OS is to "go places" and use the Internet, I would have just stayed with my old OS if I'd been told I would get wheels that fall off every few minutes.

Can I re-install Mavericks? (It's not available in the App Store I see)

What am I to do?

Thanks kindly.

The problem is nobody does know....

My mac is useless with this problem. What a waste of money this was. Can't believe Apple have let this go on for so long. Apple really have gone to the dogs, will never buy an Apple product again after this.

Good riddance.

Since Apple seems to think it can duck this issue, I would suggest everyone do their part to publicize it. Here's my contribution...feel free to link to it or create your own. But somehow we need to bring pressure to bear on Apple to DO SOMETHING!!!!

http://doctordalai.blogspot.com/2014/12/yosemite-slam.html

In layman's terms, kbastian? Not exacly. As little more than a layman myself, I am still struggling to grasp this issue. Your best bet indeed is to reinstall Mavericks until the storm blows over.

Do you have a Time Machine backup? If not, then run one 1st thing on an external HDD. Next, to be on the safe side, download a demo of Carbon Copy Cloner.

http://bombich.com/

Run a safety clone from that on another external HDD and make sure it is bootable.

If you have ever "purchased" (free download, actually) Mavericks, it should still show under your purchases in the appstore. Check that 1st.

If positive, Shut down your Mac. Start up again with command-R pressed. You will see a few options.

- "Restore from Time Machine Backup": if you have a TM backup from your Mavericks days, do that.

- "Reinstall Mac OSX": if you see Mavericks mentioned in there, you can also do that, especially if you do not have an older TM backup. Move your older data and apps with Migration Assistant once MAV is installed.

- If you don't find a solution this way, chime in again. You'll always be able to start from your bootable clone by pressing "alt/option" while starting.

Good luck! 

Are you joking? Reinstalling an operating system is a pretty drastic step... I can't belive this is a serious suggestion in apple forums. When you've got to get stuff done, this is a complete show-stopper.

I've been a Linux user for 6 years, and Linux is apparently very hard to use compared to Apple. What a lie that was. I didn't have to reinstall my OS for 5 years with Linux.

By the way layman, be *very* careful reinstalling your OS. I'd back my data up three times before doing this. It's so dangerous. Look what an Apple upgrade did! Imagine what an Apple reinstall could do...

Thanks hexdiy, for reply.

I didn't know that Mavericks would be in the App Store past Purchases. One thread said to remove my Wireless Connection and re-add it, I've done that and waiting to see if issue returns.

Next, I will replace the contents of my System/LaunchDaemons with the ZIP provided elsewhere in this thread.

If that fails, I will do the Mavericks re-install.

Ironically, when I upgraded to Yosemite, my Time Machine was full, so I deleted the back ones and started with a fresh Time Machine after Yosemite was installed. Yeah, stupid. So, no Mavericks Time Machine backup.

Thanks for help.

Great article. I've still got my Newton too. Great analogy with Obama/Biden LOL

By the way layman, be *very* careful reinstalling your OS. I'd back my data up three times before doing this. It's so dangerous. Look what an Apple upgrade did! Imagine what an Apple reinstall could do...

Yes it is dangerous, chturne. Thence the council of using both a TM backup and a bootable clone. In my experience this will do amply. Of course you can alt start from your fresh bootable clone first to check if everything is running smoothly. Before an OSX reinstall and if properly checked, shut own and uncouple the backup, as well as all peripherals except for wired mouse and keyboard. Then you must be safe.

If primarily installed with Mavericks, command-recovery startup will give you the option to reinstall Mavericks.

As they say, this is no rocket science, but a mimimum of care and alertness are definitely required.

Hey, are we really explaining age-old OSX backup and install procedures here?

And hey, kbastian, hadnt' seen your post while I was busy answering chturne. Guess you know the drill, right?

And I'm stil running Snow, chturne. But I know the the drill.

Hello my friend. Tell ya what I gone and done. Today I purchased an Apple Refurbished 13.3" Mac Book Pro (late 2012) for my wife. Called up Apple to see if I could request it shipped with Mavericks. As per Apple "it comes with Yosemite and is covered as part of the 90 day Apple Care. The customer can install Mavericks, but that will void the software coverage within that period." How 'bout them Apples!!

So, we will be good sports about this and introduce this Yosemite infected computer into our Home Wi-Fi environment. My Mini (running Mavericks) and her iPhone 5s (running OS 7.1.2) is clocking on the 5 GHz band. The wireless printer and my Android is clocking on the 2.4 GHz band. Everyone is playing nicely. So introducing the MBP with Yosemite and connecting it to my 5 GHz band is going to be a hoot 'n hollar, note worthy of a post after it arrives. It's due to arrive in about a week. I'll let you know how the shin dig went down.

Side note: I ran Linux for four years and every year the bloody Linux upgrade of the distro I was using (yes, OpenSuse) (still the best one) would corrupt the Kernel and force a fresh install. So, Mr. Drastic "Lay"nux is a bit over the top with the drama of reinstalling OS X. Just to play a DVD in Linux, you have find, install and find and install packages and unpack tar ballz and run Terminal Script then cross your fingers. If "Lay"nux ran so well for 5 years why buy a Mac that can do all those expected things out of box. Free, even. Cheers!

Apparently my wireless issues have ben solved.

For what it’s worth, after my Yosemite in-place upgrade I began to experience occasional times, though infrequent, when my wireless network connection would just drop. If I reconnected to the network again from the menu bar when this happened, the connection could be re-established easily. Throughput has never been an issue for me.

After trying this or that over the past two months (including the Appleseed release), a few days ago I tried the method outlined above (Page 125 of this thread) and inactivated and deleted my wireless service, rebooted, added the service again and gave it a new name at the same time. Since then, I’ve had zero drops.

I sort of thought that the issue was related to overly-aggressive power management, although I’ve no real basis for this belief. I think I thought this because the drops would often occur around a wake-from-sleep, though there were other times when it would occur under heavy usage, such as watching a full length movie posted to YouTube. Really, I’ve no clue as to the root cause, and will have to let the Apple software engineers figure that out.

[As a side note, I have never had a use for bluetooth, and so have it turned off. This has been the case both pre- and post-Yosemite. Since I don't use them, I’d even turn off AirPlay and AirDrop if I could (since Yosemite keeps trying to use them and failing), but there doesn’t seem to be a way to de-activate these services, so, well, that’s that. Given my hardware (Broadcom BCM43xx), I have no AWDL0 interface, so that’s a wash as well.]

Clearly, Yosemite was released a bit too early, and even though I’ll admit to considering a return to Mavericks, I like Yosemite’s UI changes enough to stay the course until things get sorted out, and I'll happily continue to beta-test it until they do.

15” MacBookPro 6,2 (Mid 2010)

OS X 10.10.2 (14C81f)

I have to disagree.  It is a drastic step but with the lack of support nor acknowledgment from Apple what choice does one have?

I backed up all my documents and files and went back to Mavericks.  Wi Fi is humming along perfectly.  People need wi fi on their

machines to use it and Yoshitonme is making it very difficult to do this.

If you want your Wi Fi to work, back up all your important files that you can't lose to an external drive or two then re-install Mavericks, or go to an Apple store and have them do it since Apple screwed up the wi fi.  The least they can do is re-install your old OS.  Once you remove your important file you should not be afraid to have your old OS re-installed.  You WILL have a working wi fi again in the end.

You could wait for Apple 10.10.99 ti fix it, and go with wifi issues waiting for it.  I switch to Mavericks on my Laptop and could not be more happier.

My Mac Mini is still on Yoshitonme  but I use ethernet on it now.  I go to wi fi on it to test different work arounds and fixes which don't seem to last nor work very long.

Thanks that's helpful to me.  I run my MBP closed 24/7 with a monitor and bluetooth keyboard and mouse about 1 ft away.  Router is very close and extender also.  Today I found my machine when I got to it had dropped the 2.4Ghz wifi and bluetooth.  I couldn't see the 2.4Ghz network at all when bluetooth was up after that, but finally with laptop open, I logged into my 5Ghz wifi with a different name and the bluetooth came up also.  I ran all day from 8AM until now (1:30AM next morning) without either dropping.  I am thinking that when I come back in the AM, it will be knocked off again with some overnight auto switching to the 2.4Ghz network it that happens.  I'm confined to a closer radius from the router if I only use the 5Ghz network as the range is about half what the 2.4Ghz is for me in other parts of the house.   Thanks for your comments.  I'm running Yosemite 10.10.1 and did the removal of the cache and reinstall of Yosemite 2 days ago after reading it online.  If 10.10.2 is more stable, how do I get it?  My MBP says it's running the latest and I expect Apple notifies me when an upgrade is available.  Thanks again for your comments.

[sidenote: OpenSuse is not "the best" distro.... Even claiming something to be the "best" is nonsensical in Linux distribution terms since they're built for varying applications. If you had made the investment to learn Linux to an advanced level (sure, I could have instead gone partying and took drugs, but that's for another sidenote) you would not have had this problem on Linux, just like me: no reinstall for 5 years! What angers me with this OSX issue is that even the advanced users on this forum are screwed... *That* is why apple is so horrifically terrible. But I'm going to stick around an moan until I get my wifi fixed, since the alternative reality is that I've just bought a £600 door stop with an apple logo on it

Why did I choose OSX if I was so happy with Linux? Because I had some disposable income and felt like a change given all the glowing reviews I had heard about Apple computers. I really have disposed of that income now... But I'm angry for other people buying apple product for whom it's a significant investment]

[sidenote: "Yoshitonme" is an awesome new name for this marvel fresh out of Apple! Thanks Apple for your care and support]