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Helpful answers
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May 2, 2014 9:38 AM in response to Grant Bennet-Alderby Dimor,well actually i was having issues when the channel was set to automatic (but also when the authentication was set to WPA2). thanks for the tip though, i will change the channel to 1 anyway
UPDATE: channel 6 causes issues for me. changed to channel 13 and it's is working great again.
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May 5, 2014 2:10 AM in response to ShaneD90by monty88haynes,This is a fix that worked for me until apple acknowledges the problem and fixes it with a patch. Macworld also has written about this issue.
http://www.imore.com/how-fix-mavericks-wi-fi-zapping-bluetooth#comment-form
After two visits to the self-aggrandising 'Genius Bar' who either had no clue or did not want to acknowledge the problem I found this after searching forums. It seems like my problem occurred after linking my macbook to my Bose Soundlink mini and if i don't have it on, then the mac searches for the bluetooth connection and slows the wifi connection. I experimented with my bluetooth mouse by turning it off and the same problem occurred. If the mac is linked to any bluetooth devices and if they're not turned on, then the problem persist for me.
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by Grant Bennet-Alder,May 5, 2014 10:31 AM in response to monty88haynes
Grant Bennet-Alder
May 5, 2014 10:31 AM
in response to monty88haynes
Level 9 (61,180 points)
DesktopsThis is purported ot be a fix for "WiFi won't reconnect after sleep", especially if no Bluetooth devices are currently active.
The file in question is:
/Library/Preferences/com.apple.Bluetooth.plist
Copy to the Desktop (in case of problems) and drag the original to the Trash.
Restart and test.
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May 5, 2014 6:29 PM in response to monty88haynesby McFiFth,Thank you, this worked for me too although dont know how long its gonna last.
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May 6, 2014 7:54 PM in response to monty88haynesby McFiFth,This worked perfectly for me until it slept for an overnight... hate it when i have to restart again everytime when it wakes up. this is like there is no wake up or sleep function. but still thx for the solution though.
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May 7, 2014 5:50 PM in response to ShaneD90by cb12394856,I'm running the latest seed and still having intermittent problems. Some of the suggested fixes appear to work for a short while, but then my connection gets flaky again. I suspect they don't really 'work', but the intermittency of the problem (in my case) causes false positives.
I've been reporting this problem (via the beta Feedback Assistant) once every day for the past couple of weeks. I'll continue to do this until Apple responds responsibly (a serious investigation with a software fix or product recall).
I'd suggest everyone keeps on Apple's back as much as time allows.
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May 8, 2014 12:44 AM in response to ShaneD90by monty88haynes,My connection is still hit or miss even after deleting bluetooth plist twice. The only thing that works is turning wifi on and off. Not good news that the beta testing is not working either. HOPELESS!!!! They either have to issue a product recall for faulty hardware or give everyone a 5 ghz apple airport.
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May 8, 2014 1:05 AM in response to monty88haynesby johnniecache,the 5GHz Apple Airport will not work well either, at least for me it didnt. Also i asked around some more and every MBPr user that i have spoken to has some noticeable WiFi problems on some networks.
Since it works on windows it is a confirmed os x driver issue and none of the tricks in this thread will work.
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May 8, 2014 1:14 AM in response to monty88haynesby kevin_,I had the same issue since getting my Late 2013 MacBook Pro. At first I wrote a script and a LaunchDaemon to monitor my WiFi connection and then toggle the Airport card if the connection were to not reconnect after waking from sleep. After months of looking at possible causes and solutions I came up with a simple terminal command to resolve the issue.
1st thing to try is the following terminal command and see if that resolves this for you.
sudo defaults delete /Library/Preferences/com.apple.Bluetooth LastA2DPDevice
If this doesnt resolve the issue you can use the script and LaunchDaemon to toggle the Airport card if you dont reconnect.
Here are the instructions for this.
1. In the terminal type the following 2 commands
mkdir /Users/Shared/Scripts
pico /Users/Shared/Scripts/airport_fix.sh
2. Copy and paste the following script (4 Lines) in the Terminal window
=====Script starts below this line=====
#!/bin/bash
/usr/sbin/networksetup -setnetworkserviceenabled Wi-Fi off
/usr/sbin/networksetup -setnetworkserviceenabled Wi-Fi on
sleep 10
=====Script ends above this line=====
3. Save the script by hitting Ctrl X and then type a "y", and then hit enter to save the script
4. Make the script Executible by typing the following in the Terminal
chmod +x /Users/Shared/Scripts/airport_fix.sh
5. In the Terminal type in the following
sudo pico /Library/LaunchDaemons/com.airport.fix.plist
6. Copy and paste the following script in the terminal window
=====Script starts below this line=====
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.airport.fix</string>
<key>ProgramArguments</key>
<array>
<string>/Users/Shared/Scripts/airport_fix.sh</string>
</array>
<key>KeepAlive</key>
<dict>
<key>NetworkState</key>
<false />
</dict>
</dict>
</plist>
=====Script ends above this line=====
7. Activate the script by typing the following in the terminal
sudo launchctl load /Library/LaunchAgents/com.airport.fix.plist
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May 8, 2014 5:43 PM in response to ShaneD90by Splinky,I followed the Macworld advice a few days ago, deleting my Bluetooth plist file, etc.
It worked well for a couple of days, but the problem reasserted itself this morning when waking my rMBP from sleep.
This was on my home network, which relies on a 2nd generation Time Capsule (dual band 2.4/5Ghz) network, so an Apple router will not automatically solve the problem.
As others have said, it's definitely a driver issue, and it's driving me mad.
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May 9, 2014 4:26 AM in response to Splinkyby monty88haynes,Thanks for confirming that the issue still persists even with the dual band router. The only reason I thought that may be an issue is that when I went into two separate Apple stores in London, I had no problems with reconnection so it was a guess that maybe the 5 ghz might help.., but apparently not. Like everyone I open the lid and hold my breath to see if the wifi indicator goes to black. Like everyone I hold my breath waiting for Apple to sort this out. AAAAAARRRRRGGGH!!!!!
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May 9, 2014 4:36 AM in response to monty88haynesby johnniecache,It may work with some 5 GHz routers though! I finally bought a R6300v2 and havent had a single disconnect for 3 months. Now i am only suffering at work and when i travel, yay.
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May 9, 2014 6:52 AM in response to johnniecacheby 4rk,The Netgear R6300v2 would be an 802.11AC (AC1750) router. Is Johnniecache using WPA2?
My Cisco Linksys EA3500 is an 802.11N (N750) router. They may both use 5Ghz but they do it differently.
I can't tell if when people said the Airport 5Ghz (which didn't work for them) they mean the Airport Express 802.11n with 2.4 and 5ghz support or the Airport Extreme 802.11AC with 2.4 and 5Ghz.
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May 9, 2014 7:03 AM in response to 4rkby johnniecache,sorry for missing details for my test:
Speedport w701v @802.11g 2.4GHz: Disconnects
TrendnetTEW-637 @802.11n 2.4GHz: Disconnects, slowing down
router at work (?) @802.11n 2.4GHz+5GHz: Disconnects, slowing down
AirportExtreme13 @802.11ac 5GHz: Disconnects, slowing down
Netgear R6300v2 @802.11ac 5GHz: good, average SMB transfer 15 MB/s
Netgear R6300v2 @802.11ac 5GHz: good, constant SMB transfer 45 MB/s (Microsoft Win 8.1)
security always WPA2
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May 9, 2014 6:29 PM in response to ShaneD90by cb12394856,Those of you who are able (and willing to take the risk of running betas), please do join the beta seed program , and submit as many bug reports as possible via the Feedback Assistant that is installed with the seeds. I'm submitting one a day.
Apple has always made it clear in the paid developer program that bug dupes play a very substantial role in how they determine priorities. The more we squeak in the appropriate place (not this forum, which isn't going to be read by anyone who matters), the more likely it is Apple will put some muscle into addressing the problem.