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Macbook Air 2013 Mavericks bluetooth making wifi slow

Good morning,


It took a while (and another forum post) to note this issue: after upgrading to OSX Mavericks from my 2013 11" Macbook Air, I noticed that whenever the laptop bluetooth is on (i use the Magic Mouse), the internet wifi gets considerably slow. As I turn bluetooth off, the Internet connection becomes quite normal.


Has anyone also experienced this problem?


I`m considering downgrading to Mountain Lion, despite the few upgrades on OS 10.9 I`m going to miss (like Finder tabs and tags).





PS: The bluetooth connection works pretty much fine along my wifi network on both Windows 8.1 (I`ve installed it via Boot Camp) and MBA`s 2013 native OS, Mountain Lion.


The problem seems to be on Mavericks.

MacBook Air, OS X Mavericks (10.9.1), MBA 2013 11"

Posted on Dec 20, 2013 1:50 AM

8 replies

Sep 15, 2017 2:09 PM in response to itosue

It really is a shame, because I have reinstalled OSX about a dozen times (between ML and Mavericks and vice versa, clean installing and etc).


I hope I can get some help.


Everything works fine on Windows 8 via Bootcamp and also on Mountain Lion but not on OS 10.9.

Dec 20, 2013 5:50 AM in response to Community User

Hello.

I have almost same problem on MacBook Pro Retina,13-inch,Late 2013 OS X 10.9.1(1383116).

According to log, it looks airportd repeats connect and disconect too frequently when I connect bluetooth device(mouse,other PC for Airplay,smartphone,etc) .

Just turning on Bluetooth is fine.It occures when I CONNECT bluetooth device.


2.4GHz radio channel looks fine.

Other device(Android smartphone,iPad,iPod touch) are working without problem.

Wifi monitoring tool(I don't know what it is called in English interface) shows me there is no noise and S/N ratio is fine.


I guess Apple's Bluetooth driver and Wifi driver are conflicting.


I leave the part of log below.(SSID and MAC address are masked.)

It looks switching or roaming to same SSID and MAC address.

All MAC address masked as XX:XX:XX:XX:XX:XX are same.

It repeats untill Wifi is completely disconected.(For several hour? I can't stay watching.)

I'm in trouble that Mac losses network drive and Time Machine fails.


I'm planning to visit genius bar next week.

I hope this information will be help for somebody.


--------------------------------------------------------------


Dec 20 17:06:35 MyMBP kernel[0]: ARPT: 1868.237588: MacAuthEvent en0 Auth result for: XX:XX:XX:XX:XX:XX MAC AUTH succeeded

Dec 20 17:06:35 MyMBP kernel[0]: wlEvent: en0 en0 Link UP virtIf = 0

Dec 20 17:06:35 MyMBP kernel[0]: AirPort: RSN handshake complete on en0

Dec 20 17:06:35 MyMBP kernel[0]: wl0: Roamed or switched channel, reason #3, bssid XX:XX:XX:XX:XX:XX

Dec 20 17:06:35 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:36 --- last message repeated 1 time ---

Dec 20 17:06:36 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:38 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:38 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:40 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:41 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:43 MyMBP kernel[0]: en0: BSSID changed to 00:00:00:00:00:00

Dec 20 17:06:43 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:47 MyMBP kernel[0]: ARPT: 1880.075667: MacAuthEvent en0 Auth result for: XX:XX:XX:XX:XX:XX MAC AUTH succeeded

Dec 20 17:06:47 MyMBP kernel[0]: wlEvent: en0 en0 Link UP virtIf = 0

Dec 20 17:06:47 MyMBP kernel[0]: AirPort: RSN handshake complete on en0

Dec 20 17:06:47 MyMBP kernel[0]: wl0: Roamed or switched channel, reason #4, bssid XX:XX:XX:XX:XX:XX

Dec 20 17:06:47 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:47 --- last message repeated 1 time ---

Dec 20 17:06:47 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:48 MyMBP kernel[0]: ARPT: 1880.721046: MacAuthEvent en0 Auth result for: XX:XX:XX:XX:XX:XX MAC AUTH succeeded

Dec 20 17:06:48 MyMBP kernel[0]: wlEvent: en0 en0 Link UP virtIf = 0

Dec 20 17:06:48 MyMBP kernel[0]: AirPort: RSN handshake complete on en0

Dec 20 17:06:48 MyMBP kernel[0]: wl0: Roamed or switched channel, reason #4, bssid XX:XX:XX:XX:XX:XX

Dec 20 17:06:48 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:49 --- last message repeated 1 time ---

Dec 20 17:06:49 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:51 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:51 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:53 MyMBP kernel[0]: en0: BSSID changed to XX:XX:XX:XX:XX:XX

Dec 20 17:06:53 MyMBP.local airportd[86]: _doAutoJoin: Already associated to "MySSID"・ Bailing on auto-join.

Dec 20 17:06:54 MyMBP kernel[0]: ARPT: 1887.353561: MacAuthEvent en0 Auth result for: XX:XX:XX:XX:XX:XX MAC AUTH succeeded

Dec 29, 2013 8:48 AM in response to Community User

I've been to Genius bar few days ago. And they say I have to reinstall OSX. So I format system drive and reinstall OSX. After reinstall system.But It still have problem. Bluetooth device with open WFi is fine.But BT device with WPA2 has problem. It still conflict and show error. I will contact chat suport and send log about it. I hope it will solve my problem.

Dec 29, 2013 1:29 PM in response to Community User

yes i do have the same problem with mavericks 10.9.1

turning off the bluetooth ÷ deleting the already registered wifi connection did not solve the problem permanently.

i am experiencing 20Mbs download speed with my windows notebook whereas i can only reach 2Mbs with my macbookair 13 at the same time.

i wish the software update fix this problem, unfortunately it didnot.

i am waiting for a fixing issue.

good luck to all poor ios users.

Jan 3, 2014 2:56 PM in response to Community User

hey guys,

the below linked solved my problem by now,

you may try it, thanks to boxx.


i have checked the wifi band it was 2.4ghz. i connected to the router (wifi modem), and in the settings i just changed the channel of the wifi. in the list box there are almost 15 channels for my router, the previous one was 11th, i just change it to the channel no 2 , with the same band 2.4ghz.

now the wifi problem has gone by now, and i hope it continues like this.


https://discussions.apple.com/thread/5512591?answerId=24113642022#24113642022

Macbook Air 2013 Mavericks bluetooth making wifi slow

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