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

Sorry Nikitkas and anyone who believes apple reads these posts.  If you want to communicate to apple you have to send them feedback, and yes you can use whatever language u like in the feedback complaint you want, and yes someone at apple will read it.  Lawsuit/recall is another route but I highly doubt apples legal team would have any trouble with it.  I firmly believe that the best thing we can all do is everyone send a support feedback to apple about this issue

http://www.apple.com/feedback/macosx.html

my bad didn't realize I posted on same thread..

Look at here

I finally figured out that my own "connection timeout" problem was caused by the DisplayPort to Dual-Link DVI Adapter. It added so much noise when in use that my macbook pro lost the wifi connection.

the solution? putting the stupid adapter further away from my macbook and also wrapping in aluminum foil to prevent it from interfering with the wifi signal... ;-) .

This works for my iMac late 2013, I got so much adapters (thunderbird/dvi - thunderbird/FW800 - USB3.0/eSata).

Try

I was having this same problem for many months and thought I'd share my experience and eventual fix.

The problem I had was the wifi connectiong dropping after my mac would go to sleep. I would drop down the wifi list, and it would search and list the entire neighbourhood before it found mine (even though I had setting to look for mine first) when trying to connect to my own home network, I would get an error - "can't connect, cancel or diagnostics?". 

I would click cancel and try again --  usually on the 2nd or third attempt it would eventually connect.

I didn't have the problem until I updated to Mavericks.  But, I seemed to only have this issue on my home network -- working downtown in many government offices, and could connect to lots of wifi networks without any issue. 

I didn't want to believe it was my router, as I wasn't having issues before the Mavericks upgrade.  I tried to change the settings on my router (that was about 3 - 4 years old) to 5Ghz but another problem was hubby's lame PC latptop couldn't connect when we set it to dual mode 2.4/5Ghz. 

I had bought a Time Machine last year, but since we had a working network, I had never set up the wifi part of it. But since I started having network slowness issues, I decided to shut down the old router and fire up the Time Machine router and see what happened. I set up a 5 Ghz network for me and a 2.4 Ghz for hubs, and everything is working fantastically.  It's been about a week and my wifi connection hasn't dropped -- not even once.  (and it's zooming fast too)

Long story short, your router may need to be updated. 

Hope this helps.

Yes I reported the same thing; using a new Apple Airport Extreme solves the issue for me.  However, this is not an acceptable solution as we cannot control what type of router is being used everywhere we go.  If my $200 iPod Touch works with any router, so should my $1800 rMBP.  Personally I believe that this problem is another of Apple's deliberate attempts at forcing their products and technology on customers.  I'm not expecting a fix from Apple. I think the message is clear:  live with the problem or buy one of their routers.  Unfortunatelt my experience with Apple products is that if you want everything to work seamlessly, you have to use 100% Apple equipment.

Message was edited by: DTS419

It is good to hear more reports about it working with an Apple router. Many of us have thought that to be the case, but having more reported data is good. You're right that this is not a valid 'fix' and Leela_B, some of us are using pretty high end routers (even brand new), both at home or the office. Certainly Apple woudln't expect only an Apple router to function properly, as that would exclude all but a small percentage of their users. And, as noted, this doesn't seem to apply to other products in their product line.

And, no, I don't think this is any kind of conspiracy. My guess is that there are various BT and WiFi chipsets involved in their various products, and that some combination experiences this problem on certain versions of the OS. They probably think they fix it, and they do for some people... and then it starts or comes back for some other set of people.

On the MacBook Pro I used to use for work (2005 or 2006 model), I experienced this problem on a couple of different point-versions of OSX. (ie: the problem existed in one point-revision, then went away for another, then re-appeard at a later revision.) I also had this problem on the personal MacBook Pro I purchased in 2007. I haven't noticed the problem for a few years, so for many, it probably did seem to first appear with Mavericks. It has gone away for me with the 10.9.2 update, but clearly still exists for some other set of people (it would be really interesting to know if this problem was new to anyone with the 10.9.2 update).

(BTW, the current machine I had this issue with is a 2013 MacBook Air. And back in 2005-2006ish, I saw a number of laptops have this problem where I worked.)

You convinced me. Been wanting a Time Capsule anyway. 5GHz Wi-Fi sounds great too.

DTS419 wrote:

If my $200 iPod Touch works with any router, so should my $1800 rMBP.  Personally I believe that this problem is another of Apple's deliberate attempts at forcing their products and technology on customers. 

In my experience, my MBA did work on any router. Just had trouble with one in particular that happened to be relatively old, and happened to my the one I used most. 

I'm pretty sure this isn't a deliberate attempt at anything, and Steve Wilkinson's comment is more likely -- some combination of OS/router incompatibility of which there is likely infinite combinations.  At least this view is much less annoying then the conspiracy theory (that isn't real by the way, unless folks are buying stuff without being under their own free will )

My WiFi reconnect issue was fixed today on the 3rd attempt. Senior tech had to get involved.

Problem:

After wakeup, WiFi had to be connected to manually.

Solution:

Preferences

Network

Select Wifi

Click minus sign

Click Wifi icon on the top right of the screen and turn Wifi off

Back to network preferences

+ add WiFi

Turn WiFi ON using top right Wifi icon

Hope it helps.

FYI, senior tech gave me his direct line and said he would call me in 3 hours to follow up. If all is well, he will call next week.

This is why Apple is the most trusted company. They stand behind their product and they own your problem. This, of course, is just my biased opinion.

Are you sure isnt a noise trouble?

I solved totally wrapping aluminum foil around cable Thunderbolt/DVI USB/eSata adapter, TOTALLY solved

Try without usb adapters or thunderbolt, try this

How naive to come on here after 21 pages and suggest its that easy.  We've all tried that simple troubleshooting step and the problem will return the next time you put the computer to sleep while paired to a bluetooth device.  sorry to burst your bubble, imacfly23

Hey DTS419,

Bubble is intact here. My iMac wakes up and connects to WiFi, just like it used to do until up a week ago.

I was just reported my specific case in order to possibly help someone and to add a data point to this issue.

You might want to try the same instead of policing the thread.

Hey man,

It worked for me. Don't be a hater.

Same issue here.  Interesting I tried the turning Bluetooth on and off which seems to have fixed the issue.  The WiFi takes about 3-5 seconds to rejoin the network, however on my brothers 13" MBPr it connects instantly.

Not sure if I still have the issue or if this is normal

do u got some cable adapters?

Are u sure isnt a noise trouble?