sirhyll
Level 1 (4 points)

Q: BUG: Mountain Lion kills wifi speed when using airplay or time capsule

Hi,

Here is the situation, I have a MBP 3,1 Core 2 Duo 2,4Ghz.

I've upgraded from 10.7 to 10.8, and now, when I'm trying to use time machine on my time capsule (last gen), or airplay on my airport express (802.11n) the transmission speed drops from 160/200 to 6/13. (As you can see on the screenshots below. First image, without any of these two features  / Second image, with time machine trying to find the time capsule drive  /  Third image, with airplay activate)

 

The time machine don't manage to find the time capsule drive and failed.

Airplay works for 3 seconds and stops. I've tryed airplay with itunes (the old way) and quicktime with the new airplay option, both stops after 3/4 seconds..

 

1.jpg3.jpg2.jpg

 

 

 

 

I made my 30Go time machine backup with an ethernet cable, it worked ok.

I still use my airport express with my iPhone without any problem.

And all other internet usages are working correctly, I can even acces to my data on the time capsule and copy files from with no problem, without this "transmission speed drop" situation.

 

 

I have 3 differents wifi signals in my (large) flat:

The time capsule broadcasts 2 different wi-fi n on 2,4ghz and 5ghz

and another Asus router broadcasts wi-fi b/g on 2.4ghz

I've tried the 3 different connections, all have the same "transmission speed drop" issue with airplay and time machine, and these two features don't work anymore.

 

And of course, I never had this situation with Lion..

 

Any solution, or is there definitely a bug with mountain lion handling my wi-fi card: AirPort Extreme  (0x168C, 0x87)

I already reseted the PRAM and NVRAM; and did an onyx maintenance nothing changed...

 

 

Any help appreciate,

Thx

Posted on Jul 29, 2012 11:25 AM

by rJUUSO,Solvedanswer
rJUUSO rJUUSO
Level 1 (10 points)
A:

The wait is over! 10.9 Mavericks solved the slow transmit rate problem on my 2007 MBP.

Posted on Oct 26, 2013 8:14 AM

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sirhyll

Q: BUG: Mountain Lion kills wifi speed when using airplay or time capsule

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  • by lenn4rd,

    lenn4rd lenn4rd Jun 26, 2013 8:24 AM in response to Gunny Sack
    Level 1 (0 points)
    Jun 26, 2013 8:24 AM in response to Gunny Sack

    Gunny Sack,

     

    thanks for your tip. I reset the SMC but the Wi-Fi connection still stalls. I ran the command which I think returns any non-Apple kexts. I don't have any, so the command doesn't output anything.

     

    Unless you happen to have other suggestions I think I'll switch back to the vanilla 10.8.4 kext and will have to do my Time Machine backups over wired ethernet until Apple fixes this issue (not very likely) or I can afford a recent MacBook Pro (also not very likely ).

  • by Gunny Sack,

    Gunny Sack Gunny Sack Jun 26, 2013 11:36 AM in response to lenn4rd
    Level 1 (40 points)
    Jun 26, 2013 11:36 AM in response to lenn4rd

    At least we've ruled out non-Apple kextstat. Some more things to try if you're willing to experiment.

     

    1) Downgrade the kext to the 10.6.8 version posted earlier in the thread. Be sure to confirm that it was propely installed. If that doesn't work,

     

    2) Create a new temporary wifi profile (new SSID and a different encryption protocol) on your router and test it for wifi drops.

     

    3) If that fails, delete all the saved wifi entries in System Preferences > Network along with any wifi entries in Keychain Access. Reconnect and test.

  • by MacMunfordGB,

    MacMunfordGB MacMunfordGB Sep 13, 2013 7:07 AM in response to sirhyll
    Level 1 (0 points)
    Sep 13, 2013 7:07 AM in response to sirhyll

    Has anyone taken 10.8.5 and does it have the same issues as before?

  • by Gunny Sack,

    Gunny Sack Gunny Sack Sep 13, 2013 11:36 AM in response to MacMunfordGB
    Level 1 (40 points)
    Sep 13, 2013 11:36 AM in response to MacMunfordGB

    Given that the kext version number for 10.8.5 is still 5.3, the same as it was in 10.8.4, I'm going to assume that nothing has changed.

  • by lenn4rd,

    lenn4rd lenn4rd Sep 13, 2013 12:44 PM in response to Gunny Sack
    Level 1 (0 points)
    Sep 13, 2013 12:44 PM in response to Gunny Sack

    That's right, I have the same issues as before.

  • by Tag986,

    Tag986 Tag986 Sep 13, 2013 3:21 PM in response to sirhyll
    Level 1 (0 points)
    Sep 13, 2013 3:21 PM in response to sirhyll

    Same problem for me since I have 10.8 ..
    Today I take 10.8.5 and it's the same

     

    Airplay could be killed cause this connection is not stable !
    I hoped a solution but ... Nothing ...

  • by sirhyll,

    sirhyll sirhyll Sep 16, 2013 1:10 PM in response to Tag986
    Level 1 (4 points)
    Sep 16, 2013 1:10 PM in response to Tag986

    Yep, same problem again and again.

    Hope it will be fixed on 10.9... maybe...

    I had to switch the airportd file, once again, to get it work ok

  • by Tag986,

    Tag986 Tag986 Sep 16, 2013 2:01 PM in response to sirhyll
    Level 1 (0 points)
    Sep 16, 2013 2:01 PM in response to sirhyll

    Sorry for my inconvenience but I don't know how I can set it te replace the "airportd" file

     

    Can you help me how to process.

  • by Gunny Sack,

    Gunny Sack Gunny Sack Sep 16, 2013 2:06 PM in response to Tag986
    Level 1 (40 points)
    Sep 16, 2013 2:06 PM in response to Tag986

    The instructions and the airportd file are on the previous page.

  • by Tag986,

    Tag986 Tag986 Sep 16, 2013 2:37 PM in response to Gunny Sack
    Level 1 (0 points)
    Sep 16, 2013 2:37 PM in response to Gunny Sack

    Thks Gunny Sack for the answer,  but when I try this file my Wifi could not be connected to any device.
    I applied like it was described in the previous page.

  • by Gunny Sack,

    Gunny Sack Gunny Sack Sep 16, 2013 2:44 PM in response to Tag986
    Level 1 (40 points)
    Sep 16, 2013 2:44 PM in response to Tag986

    Did you restart? If so, check the version numbers of the kext installed in /System/Library/Extensions. Sometimes the kext utility doesn't properly install the kext.

  • by Yorick2a,

    Yorick2a Yorick2a Sep 17, 2013 7:09 AM in response to Tag986
    Level 1 (35 points)
    Sep 17, 2013 7:09 AM in response to Tag986

    So looks like i await till i hear how X.9 works then if that still does not work then I will go through changing the file out. I have been hesitant in doing as i realy on this MBP for work and can not be tired up reduing the OS atm. So OS X.9 is compatable with the Mid 2007 2.4ghz MBP? I would have though for sure this one would not get another update!!! Hope they fix the wifi issue if this is true.

  • by Tag986,

    Tag986 Tag986 Sep 17, 2013 10:07 AM in response to Gunny Sack
    Level 1 (0 points)
    Sep 17, 2013 10:07 AM in response to Gunny Sack

    So, next to my famous problem. I do not apply correctly the kext replacement. Just the "airportd" file and the kext utility without change the 10.6.8 or 1.07.3 it in the system.. (big mistake sorry)


    Good news for today. My connection seems to be better than orignial 10.8.X versions !

     

    Thanks a lot to resolve this problem while Apple do nothing for M.L

  • by oli@mac,

    oli@mac oli@mac Sep 19, 2013 12:20 AM in response to sirhyll
    Level 1 (0 points)
    Sep 19, 2013 12:20 AM in response to sirhyll

    Can't believe this is not fixed, again. A tad disappointing...

  • by Yorick2a,

    Yorick2a Yorick2a Oct 22, 2013 1:18 PM in response to Gunny Sack
    Level 1 (35 points)
    Oct 22, 2013 1:18 PM in response to Gunny Sack

    did anyone try OS X.9 yet? not updating till i hear if it works or not

    by the way OS X.9 is free

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