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wifi keeps dropping since Yosemite upgrade

Since upgrading to Yosemite, my previously-stable (with Mavericks) wifi connection keeps dropping. I have to click the wifi icon and re-select my network every minute or two. I have turned off bluetooth and uninstalled/reinstalled wifi and my networks. I have rebooted multiple times. No luck so far. It appears that others are having similar problems. Any solutions at this point?

Early 2013 MacBook Pro Retina 13" running OS X Yosemite 10.10

MacBook Pro with Retina display, OS X Yosemite (10.10)

Posted on Oct 16, 2014 11:23 PM

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Question marked as Top-ranking reply

Posted on Oct 16, 2014 11:28 PM

Hi ..


Might be corrupted network preferences as a result of the upgrade.


Open the Finder. From the Finder menu bar click Go > Go to Folder


Type or copy paste the following:


/Library/Preferences/SystemConfiguration


Click Go then move all the files in the SystemConfiguration folder to the Trash.


Restart your Mac.



See if that makes a difference.


Your Mac will generate a new SystemConfiguration folder for you.


If that doesn’t help, try here > Wi-Fi: How to troubleshoot Wi-Fi connectivity

312 replies

Dec 23, 2014 2:54 PM in response to PFJ30

This problem has been an annoyance for far too long. This goes back to mavericks for my own rMBP (late 2013 custom order). I have another rMBP(early 2013 custom order), no issues. An MBA(2013 custom order) also runs on the same network with no issues.


Deleting the network prefs works for a while but the problem eventually returns. Still searching for a solution. I purchased the Apple Care due to this issue and so far Apple has been of no help.

Dec 24, 2014 4:56 AM in response to mattormond

I can also confirm that my fix also works long term, over a week now and once connected, in the way I described (repeatedly, about 20 times, selecting my network in the drop down box despite being already connected) I stay connected. I am very conscious that different things seem to work for different people and that my setup is a little unusual in that I tether to a smart phone rather than a modem but nevertheless, like everyone else, the problem is with Yosemite and even if it just helps a few people, it will have saved a lot of frustration.

Jan 4, 2015 10:53 AM in response to mattormond

I was having the same problem. My iMac would not maintain its connection to the internet even though it was connected to the router. After trying much reading and trying many things here is what solved out problem. First of all I have a dual band Netgear wireless router. All other devices (a number of windows laptops, televisions, PS3, Wii, various smartphones) had no connection problems.


I changed the channel on my 2.5 GHz signal on my router from AUTO to channel 1. My 5 GHz was already on a fixed channel.


Problem solved. The iMac is no happily connected and does not drop connection.


I am frankly not sure what I am losing by going to the fixed channel vs Auto but for now everything is good so I would recommend other with the same issue to try this.

Jan 6, 2015 1:12 PM in response to jennnnnifer

In my case deleting the SystemConfigurations was useless.


I limited the amount of allowed connection in uTorrent and installed the package jre-8u25-macosx-x64 (java), I haven't been having wifi drops since then.


Maybe uTorrent uses some Java function that are no more in the default java package on the Mac after the Yosemite upgrade, and maybe this happens with other applications too!

Jan 20, 2015 12:26 PM in response to mattormond

I got a temporary fix for this BIG problem for MAC PRO RETINA users until Apple figure it out

Most of us have Torrents programs just start downloading any torrent file and put the down and up speed at 5 kB/s the connection will not drop when doing this

and for gamers you can just stop the download when your in internet game not before

we really hop apple will fix this soon.

😎

wifi keeps dropping since Yosemite upgrade

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