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

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...

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.

I have the same problem with both my Macbook Air and Macbook Pro.  Incrediby frustrating.  With all the complaints in the past few months, I'm not quite sure why Apple is not addressing this issue as it should be an easy fix.  

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...

looks like apple customer support don't give a f*ck

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

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.

Tried this but still have the same issue re-connecting to WiFi unless I leave Bluetooth turned off.

Also now I cannot re-add any bluetootth devices as the "Set Up New Device" option or a + sign, is completely missing from the Bluetooth Preferences list.

@ 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.

Well the 10.9.2 update did not fix this issue for me.

Anyone else have any luck?

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.

10.9.2 seems to have fixed this problem for me also.

10.9.2 did NOT solve this issue for me either.  Apple now wants to replace my logic board.  I'll report back if that fixes it (I doubt it).

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.

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.