Wifi disconnects after sleep and takes long time to reconnect with Mavericks

Since upgrading to Mavericks whenever my MacBook Air goes to sleep (if I leave it idle) the wifi disconnects and it can take up to a minute to reconnect when it wakes.


Basically what happens is, as soon as it wakes I have no internet connection, the WiFi indicator is pulsing, meaning it is searching for networks, but it takes ages to find any, then after some time, usually between 30 secs and a minute all the networks in my building pop up and it instantly at that point reconnects to my WiFi network.


It is incredibly frustrating I was so used to the Mac being an instant on tool, now it takes longer to get on the internet than booting up my windows PC.


Any ideas what might have caused this?

Posted on Oct 28, 2013 4:08 AM

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483 replies

Feb 17, 2014 6:04 AM in response to zigg1

Having the same issue.


I bought a Canton DM 50 Soundbar, which I connect with my rMBP 13' (2013) as soon as I am home. Unfortunatly, whenever my rMBP enters the "Sleep Mode" I lose my connection.


It is very frustrating, especially if my main intent is to stream spotify to my soundsystem.


I don't know the complexity of the problem, but a quick fix would be nice. But since the problem is known for over 4 month now and nothing happened, I have just a little hope...

Feb 17, 2014 6:34 AM in response to st3f4n

Sadly Apple is not what it used to be. "It simply works" is history now.


1. It is sad that you need to disable Bluetooth in order to have the most expensive most beauriful laptops work "properly."


2. It is sad that anyone with an iPhone 4 upgraded to iOS7 needs to either change phone or live with a painfully slow device.


3. Not to mention if you made the mistake to buy iTunes Match which simply doesn't work and leaves half of your music library "unmatched" and stuck without remedy.


I used to be an Apple fanboy, not anymore. Apple now equals:

- beautiful HW,

- average SW,

- poor Support.


Probably Apple is too busy counting the billions they make in profit every few weeks. They'd better put some money to fix huge bugs like this and keep their customers happy.


I don't think Steve Jobs would have left this happen.

Feb 18, 2014 12:27 PM in response to seb101

FWIW, I've recently discovered that this problem goes away for me when I use the 5GHz band of my dual band router. Using 5GHz (rather than 2.4GHz), even with BT enabled, I connect after sleep and restart without issue.


This is not a "fix" for several reasons, I know. But at least there is some consistency to when this problem happens or not for me...I think.


It happens when I'm on the 2.4GHz band AND my BT is on. If I turn BT "Off" or change to the 5GHz band, the problem is gone.


Hmmm...

Feb 21, 2014 12:02 PM in response to zigg1

Hi zigg1, I've seen the solution to the wifi issue being to remove a similar sounding file in other posts as well. I have a one-month old iMac that I had to upgrade to Maverick and a brand new (2 days) that came installed, and both have the wifi issue.


As I am a novice Mac user, would you mind explaining how to get to that file that I need to remove?


Separately but starting to think related, is that the Target Display Mode doesnt work as it should 😟


Thank you!
Aki

Feb 22, 2014 10:54 AM in response to kiweee

Hi kiweee,


I've documented exactly what I did over at Ask Different: http://apple.stackexchange.com/a/120696/21050


In a nutshell:


  1. In Terminal, I typed
    sudo rm /Library/Preferences/com.apple.Bluetooth.plist
  2. I rebooted.
  3. I re-paired only the Bluetooth devices I needed. This excluded my portable speaker, but I was able to use both my Magic Trackpad and my Creative T3150W desk speakers.

Feb 23, 2014 10:34 AM in response to Denbee

@ Denbee - Apple hardly ever addresses problems, aside from critical security updates, outside of the normal OSX updates. For example, many users are currently having a no-wake-from-sleep issue which is much worse than this BT issue, and the fix isn't expected until 10.9.2. I'm sure we'll have to wait until 10.9.2 and hope.


The good news is that it doesn't sound like 10.9.2 will be too long from now. If that doesn't fix it, then we're probably looking at some number of months.


BTW, I've been traveling a bit, and just wanted to add that I've had the problem on a number of different WiFi networks, so it certainly isn't limited to a small set of non-Apple WiFi routers.

Mar 1, 2014 12:51 PM in response to antipoet

Yes, the 10.9.2 update has fixed the issue for me. Almost 3 days now and I've left BT and my mouse on, and no problems reconnecting after sleep.


My guess was that any fix would only work for a sub-set of people, and probably has added some set of new people who it was working for in the past.... if this problem is similar to how it has been historically, which is seems to be. It will be interesting to see if people start showing up saying 10.9.2 broke my wifi with BT on.

Mar 1, 2014 1:58 PM in response to DTS419

Remember that there is some diversity to how this problem has been manifesting. It is possible that there might be hardware problems that cause such behavior... but I think for most of us, it's just a software issue. I know some of the not-waking from sleep issue reported in other threads were resolved by motherboard updates, while others (such as a friend of mine) seemed to also be fixed by the 10.9.2 update.

Mar 2, 2014 4:05 PM in response to seb101

For what it's worth, here's the problem I had and how Apple Support helped me fix it:

New MacBook Pro Retina running OSX 10.9.2. I've had it for about two weeks. I have been using a Bluetooth numeric keypad with it from the start with no problems. Today I also paired some Bluetooth headphones, and immediately after that I started having the problem with it hunting for my wifi network upon waking. As others have said, if I turned off Bluetooth the problem would disappear.

Matt from Apple had me go to library/preferences and add ".old" to a file named "com.apple.Bluetooth.plist" (a safe way of in effect deleting the file so it would be regenerated upon restart).

Seems to have fixed the problem. Matt had me pair the headphones again (which I had un-paired in an attempt to fix the problem) and wifi still reconnects immediately and automatically upon wake. I'm keeping my fingers crossed.

Hope this helps somebody.

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Wifi disconnects after sleep and takes long time to reconnect with Mavericks

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