lrogersinlv
Level 1 (1 points)

Q: Lion WiFi Connection Problem

Since installing Lion on both my IMac and MacBook Pro, the WiFi cycles (wifi icon on the menu bar) - looking for network - network on - looking for network. iMac with OS 10.6 doesn't have this problem so it's not the AirPort and there was no problem prior to installing Lion.  The AirPort Utility log shows lots of connection activity but I don't know if that means anything. The network troubleshooter says theres no problem but it's causing big problems with connection speed and applications that need a constant connection are giving me network errors constantly.  Please give me some advise.... 

Posted on Jul 20, 2011 5:19 PM

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lrogersinlv

Q: Lion WiFi Connection Problem

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  • by lupunus,

    lupunus lupunus Aug 28, 2011 4:33 PM in response to robbertvdd
    Level 4 (1,000 points)
    Aug 28, 2011 4:33 PM in response to robbertvdd

    robbertvdd wrote:

     

    Then I connected to my network again and after about a month it still looks like the problem is resolved.

     

    I've passed your post to a friend immediately after I read it on Aug. 27. He had already installed LION to his MBAir and was going mad with his wireless for about 3 weeks.

     

    In addition to your post I recomended him to repair the permissions before setting up the new networks.

     

    He went thru your advise and

     

    • power of the router
    • delete all known networks
    • delete the AirPort (en1)
    • delete all wireless passwords from keychain
    • delete on /Library/Preferences/SystemConfiguration the files com.apple.airport.preferences.plist and com.apple.network.identification.plist
    • delete on /User/<name>/Library/Preferences the files com.apple.internetconfigpriv.plist and com.apple.internetconfig.plist
    • reboot the MBA (still no power on the network)
    • repair permissions on MacIntosh HD
    • reboot MBA again
    • power on the network
    • go to system preferences, add AirPort and do the needed settings
    • activate AirPort on the MBA and connect (DHCP), give the passphrase for the network

     

    Since then wireless network on his MBA runs without any disturbance.

     

    Hope your tips work for others well too.

     

     

    regards - Lupunus

  • by David Cher,

    David Cher David Cher Aug 29, 2011 7:35 PM in response to lrogersinlv
    Level 1 (0 points)
    Aug 29, 2011 7:35 PM in response to lrogersinlv

    tried this :

    com.apple.airport.preferences.plist

    NetworkInterfaces.plist

    preferences.plist

     

    from Macintosh HD/Library/Preferences/SystemConfiguration

  • by PJRives,

    PJRives PJRives Aug 29, 2011 9:24 PM in response to nipper123
    Level 1 (85 points)
    Aug 29, 2011 9:24 PM in response to nipper123

    FYI. Those are NOT Apple employee emails. If you send messages to those particular addresses, some poor innocent folks are going to get slammed with nasty emails for no reason

     

    All Apple employee emails are @apple.com

  • by PJRives,

    PJRives PJRives Aug 29, 2011 9:50 PM in response to jamiana
    Level 1 (85 points)
    Aug 29, 2011 9:50 PM in response to jamiana

    saying you can't do a clean install with Lion is actually not true. You can via the recovery partition that Lion creates

     

    Then you can use the application install disk that can with your computer to reinstall iLife and so on

  • by lovsky,

    lovsky lovsky Aug 29, 2011 11:59 PM in response to PJRives
    Level 1 (0 points)
    Aug 29, 2011 11:59 PM in response to PJRives

    I have tried the clean install (Lion)...

    The problem is still here...

    I repeat i have tried:

    • deleting SystemConfiguration
    • deleting duplicate keys in Keychain (Airport)
    • PRAM reset
    • changed all wifi channels
    • changed many DNS
    • manual IP address
    • IPv6 -> only local link
    • clean Lion install

    7 weeks from Lion and i can't use my mac.... I'm really disappointed

  • by Luxur,

    Luxur Luxur Aug 30, 2011 4:54 AM in response to lrogersinlv
    Level 1 (0 points)
    Aug 30, 2011 4:54 AM in response to lrogersinlv

    Hi there,

     

    Has anyone tried this.... i tried this about a week ago and internet has been flying :-)

     

    Someone else posted this... I can't recall who?

     

    I went into my router settings (Thomson Gateway) and changed the channel setting from automatic to manual. I selected channel 12 and the IMAC was fine, but then my MACBOOK AIR wasn,t so I went to another channel that suited both. (You should find the channel setting under home network / interfaces / then up to the left is configurations)

     

    Go to ABOUT THIS MAC,  system report, then click on wi-fi and you will have achoice of channels.

     

     

     

    hope this helps..

     

    cheers from downunder

  • by flanarybm,

    flanarybm flanarybm Aug 30, 2011 1:49 PM in response to lrogersinlv
    Level 1 (15 points)
    Aug 30, 2011 1:49 PM in response to lrogersinlv

    I am having a similar problem.  I am using a Time Capsule and it seems to be affecting it while in the backup process.  I thought this would have been resolved in 10.7.1, but it was not.  I've had to resort to hard resetting my computer a few times.  Thanks for the post.  I'll try some of the solutions below before we get a bug fix.

  • by galmeida_,

    galmeida_ galmeida_ Aug 31, 2011 9:22 AM in response to flanarybm
    Level 1 (34 points)
    Aug 31, 2011 9:22 AM in response to flanarybm

    resetting PMU solved the problem on my 2011 mac-mini

     

    http://support.apple.com/kb/HT2183

  • by DaPunk,

    DaPunk DaPunk Aug 31, 2011 10:48 AM in response to lrogersinlv
    Level 1 (0 points)
    Aug 31, 2011 10:48 AM in response to lrogersinlv

    I found some solution. Before my imac 2011 can't access internet after 5 mins if no action. But 2 laptop and 1 ipad work fine.

    Airport no drop and full signal if turn on/off airport it work again but if no action internet go to down.

     

    I try many fix method but not work for me.

    Finaly i try disable WMM mode in wireless router (before is enable). Bingo!! my imac internet no drop again. All device is work great.

    I use WPA2 but if set to WEP can enable WMM. I don't why but the internet no drop too.

     

    Sorry my english not good. Hope it help.

  • by lupunus,

    lupunus lupunus Aug 31, 2011 11:04 AM in response to DaPunk
    Level 4 (1,000 points)
    Aug 31, 2011 11:04 AM in response to DaPunk

    What the f*** you mean with WMM?

  • by DaPunk,

    DaPunk DaPunk Aug 31, 2011 11:16 AM in response to lrogersinlv
    Level 1 (0 points)
    Aug 31, 2011 11:16 AM in response to lrogersinlv

    http://www.wi-fi.org/knowledge_center/wmm

     

    Some router has function this.

  • by lupunus,

    lupunus lupunus Aug 31, 2011 11:28 AM in response to DaPunk
    Level 4 (1,000 points)
    Aug 31, 2011 11:28 AM in response to DaPunk

    ok ... thats a QOS (Quality of Service) variant.

     

    My old router have this, but it never had any influence to the connection.

     

    So I think that the real reasons was the WMM thing. Just a lucky event, that disabling this works for you.

     

    Whats the type of router you use?

  • by Shivetya,

    Shivetya Shivetya Aug 31, 2011 11:48 AM in response to lupunus
    Level 1 (0 points)
    Aug 31, 2011 11:48 AM in response to lupunus

    I changed my wifi password ((wpa2-aes)) to twenty digits from ten and it stays connected now and wakes properly after sleep. Go figure

  • by DaPunk,

    DaPunk DaPunk Aug 31, 2011 12:13 PM in response to lrogersinlv
    Level 1 (0 points)
    Aug 31, 2011 12:13 PM in response to lrogersinlv

    I use All-in-one router type. I think present all wireless router has function this but my old router hasn't WMM.

  • by Tetonshel,

    Tetonshel Tetonshel Aug 31, 2011 2:29 PM in response to JonPi
    Level 1 (0 points)
    Aug 31, 2011 2:29 PM in response to JonPi

    Sorrry but this not quite responsive but didn't know how else to raise issue.  I'm holding back on installinig lion because of all the chatter regarding lion and wifi.  Are people who are having these problems (and there appears to be a lot of them) having them with airport extreme or are they connected with other routers?

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