vhkim
Level 1 (3 points)

Q: New Macbook Air - wifi connectivity problems

Hey guys,

 

Hope someone can help?

 

I have a brand new Macbook Air which is able to connect to the internet for just a minute or two before suddenly it drops out. This is even though the signal still shows at full strength and all my other devices are still able to surf the net as per normal.

 

This device is straight out of the box so no 3rd party applications have been installed. I heard that the wifi has been upgraded to 802.11n on this machine, could that be an issue?

 

Do i need to return the machine or is there is a software fix for this problem?

 

Thanks heaps!

 

Vicky

MacBook Air, iOS 6.1.4

Posted on Jun 13, 2013 5:55 AM

by wifiguru,Solvedanswer
wifiguru wifiguru
Level 2 (240 points)
A:

Have you cheked if your Netgear router has the latest firmware ? What model number is it ? Your RSSI,Noise, Tx rate etc. look good. One thing you could try is switch to a different channel, say channel 6 and give that a shot.

 

Can you copy paste info. from your /var/log/system.log info around the time frame you see the drop ? I can take a look and see if it helps any.

Posted on Jun 13, 2013 3:57 PM

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vhkim

Q: New Macbook Air - wifi connectivity problems

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  • by Super_eight,

    Super_eight Super_eight Sep 12, 2013 1:59 PM in response to KlaatuBarada
    Level 1 (0 points)
    Sep 12, 2013 1:59 PM in response to KlaatuBarada

    No ... update installed, nothing changed ... still timeouts : (

  • by XYLIAO,

    XYLIAO XYLIAO Sep 12, 2013 2:04 PM in response to vhkim
    Level 1 (0 points)
    Sep 12, 2013 2:04 PM in response to vhkim

    On .35 driver, curiously, when I ping without doing anything else, the result is between 30-60ms. But when I watch the video on Youtube, the result changes to 1-3ms.

  • by pietrodelta7,

    pietrodelta7 pietrodelta7 Sep 12, 2013 2:11 PM in response to Super_eight
    Level 1 (0 points)
    Sep 12, 2013 2:11 PM in response to Super_eight

    Super_eight, could you confirm if the wifi driver changed from .35 to another?

    Thanks

  • by Super_eight,

    Super_eight Super_eight Sep 12, 2013 2:53 PM in response to pietrodelta7
    Level 1 (0 points)
    Sep 12, 2013 2:53 PM in response to pietrodelta7

    pietrodelta7 ... where exactly do I find the version number?

    Systemprofiler?

  • by orchetect,

    orchetect orchetect Sep 12, 2013 3:08 PM in response to pietrodelta7
    Level 1 (11 points)
    iTunes
    Sep 12, 2013 3:08 PM in response to pietrodelta7

    Haven't installed 10.8.5 on my Air yet, but for frame of reference:

     

    OSX 10.8.4 pre-Wifi update: AirPortBrcm4360 version 6.3.0

    OSX 10.8.4 post-Wifi update: AirPortBrcm4360 version 6.3.1

    OSX 10.8.5: AirPortBrcm4360 version 6.4.1

     

    They've updated the driver, but it appears it may just be the 802.11ac AFP speed issue, not our WiFi chipset issues.

  • by Fujishu,

    Fujishu Fujishu Sep 12, 2013 3:10 PM in response to Super_eight
    Level 1 (0 points)
    Sep 12, 2013 3:10 PM in response to Super_eight

    I believe you can find the "firmware version" by this route, although there may be a faster way!

     

    Apple icon click--then choose About this mac, then More info, then System Report; then go over to the left column:  choose Network, then Wifi, then the firmware version should be seen beneath, in the column of information.

  • by meighancardenas,

    meighancardenas meighancardenas Sep 12, 2013 3:20 PM in response to orchetect
    Level 1 (0 points)
    Sep 12, 2013 3:20 PM in response to orchetect

    Uggh!  After sucessfully fixing my ping values by rolling back to .22 - just updated to 10.8.5 and my pings are all out of whack again!!!!  NOOOO!

  • by headcase,

    headcase headcase Sep 12, 2013 3:36 PM in response to orchetect
    Level 1 (15 points)
    Sep 12, 2013 3:36 PM in response to orchetect

    Yeah, per the release notes for 10.8.5 that I mentioned a week ago, this maintenance release was to fix the wireless performance bug for AFP which was noticed right away in some professional reviews of the 2013 MBA (e.g. AnandTech). 

     

    It was only speculation of whether the updated wireless driver would also remove the latency bug found in the .35 driver, and would need to be tested for upon its release.  Some folks are saying the latency bug is still there, and I'll confirm myself with a clean 10.8.5 build on spare hard drive against various routers later tonight.

     

    And if the latency bug is in fact still there, I would stick with the original .22 driver for daily use.

  • by pietrodelta7,

    pietrodelta7 pietrodelta7 Sep 12, 2013 3:28 PM in response to meighancardenas
    Level 1 (0 points)
    Sep 12, 2013 3:28 PM in response to meighancardenas

    Please, if you can, remember to put your build week and problem as I mentioned in my second post (I think). It would be SO useful.

    Thanks

  • by Will.Mo,

    Will.Mo Will.Mo Sep 12, 2013 3:34 PM in response to vhkim
    Level 1 (0 points)
    Sep 12, 2013 3:34 PM in response to vhkim

    10.8.5 does not fix the problem, actually makes it worse. If I boot into recovery mode and use terminal to ping my local gateway I get 3-5ms pings +/- 1-2 ms. When booted into 10.8.5 pinging my gateway from terminal I get anwhere from 1.2ms all the way to 1000ms. In both cases I am a few feet away from the AP with line of sight. Have testest with current and last gen airport extreme, current gen airport express and other brands of AP. I am starting to think it's a hardware issue, otherwise Apple would have fixed it by now.

  • by meighancardenas,

    meighancardenas meighancardenas Sep 12, 2013 3:34 PM in response to headcase
    Level 1 (0 points)
    Sep 12, 2013 3:34 PM in response to headcase

    10.8.5 totally screwed up my ping values...had rolled back to .22 and had great ping values - now that's gone.  Think I can roll back to .22 again via the same method even after installing 10.8.5?

  • by orchetect,

    orchetect orchetect Sep 12, 2013 4:52 PM in response to meighancardenas
    Level 1 (11 points)
    iTunes
    Sep 12, 2013 4:52 PM in response to meighancardenas

    I'm sure it's possible to do the manual .22 rollback in OSX 10.8.5 but I would highly recommend reverting just the AirPortBrcm4360.kext file (located inside IO80211Family.kext/Contents/PlugIns) and NOT the entire IO80211Family.kext.

     

    Remember, this is a tech-head tweak and not for the faint of heart.

  • by meighancardenas,

    meighancardenas meighancardenas Sep 12, 2013 5:35 PM in response to orchetect
    Level 1 (0 points)
    Sep 12, 2013 5:35 PM in response to orchetect

    Um....why the cautionary closing (i.e. "not for the faint at heart") - is there some reason I shouldn't do this?

     

    Also, would you please be so kind as to give me specific instructions for doing what you suggest (i.e. reverting just the AirPortBrcm4360.kext file).  Also, where do I get the file to use to revert?  Is it contained in the .22 driver (i.e. the IO80211Family.kext file I downloaded to revert back to .22)?

     

    So looking forward to your instructions...working from home today on my remote server and the latency is driving me CRAZY!!!

     

    THANKS IN ADVANCE ORCHETECT!!!

  • by DougsPlace,

    DougsPlace DougsPlace Sep 12, 2013 8:36 PM in response to Will.Mo
    Level 2 (230 points)
    Sep 12, 2013 8:36 PM in response to Will.Mo

    feeback from those taking 10.8.5 for a test drive   making me groan.   3 months later, discussion headed north of 200,000 views,  OS maintenance release doesn't seem to address  issue and/or makes it worse?    This 25 year customer waiting to buy an MBA is  frustrated.

  • by jaimehrubiks,

    jaimehrubiks jaimehrubiks Sep 12, 2013 10:23 PM in response to vhkim
    Level 1 (0 points)
    Sep 12, 2013 10:23 PM in response to vhkim

    I want to cry

     

    I think this has to be apple's joke, this can't be true, they must have read this topic, how could they possibly make an update wich manteins the lag issue, knowing that a previous one .22 did not have it...

     

    Ok, could some give us exact instructions on how to revert from last patch to .22 driver? We would be very grateful

     

    PD: 10.8.5 patch is like getting the worst things from all patches, very high pings including timeouts, ping trick works no longer and I have disconnects from my own network

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