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 putnik,

    putnik putnik Jul 28, 2011 12:57 AM in response to nipper123
    Level 3 (795 points)
    Mac OS X
    Jul 28, 2011 12:57 AM in response to nipper123

    Yes, mine was a clean install using an SL clone on an external disk, wiping the laptop HD first.

     

    It points to the migration process, plists and keychain entries etc. But I expect it will be correctable without needing to go the whole re-install route

  • by Nicholas Burke,

    Nicholas Burke Nicholas Burke Jul 28, 2011 1:09 AM in response to putnik
    Level 1 (90 points)
    Jul 28, 2011 1:09 AM in response to putnik

    Before everyone starts wiping their hard drives and installing from zero, as the last two comments suggest, I have done this and the problems with Wi-Fi dropouts persist.

  • by nipper123,

    nipper123 nipper123 Jul 28, 2011 1:16 AM in response to Nicholas Burke
    Level 1 (0 points)
    Jul 28, 2011 1:16 AM in response to Nicholas Burke

    That's depressing news.

    Mine is still connected fine after about 16 hours but I won't believe it is OK until I've tried connection to 5 or 6 base stations tomorrow. So don't rush into anything yet guys.

  • by nipper123,

    nipper123 nipper123 Jul 28, 2011 2:02 AM in response to nipper123
    Level 1 (0 points)
    Jul 28, 2011 2:02 AM in response to nipper123

    You are right--it does not fix it completely but here is another data point.

    I walked down my street with MB in hand until I found a FON access point in the list of available networks. First time I tried access I got the dreaded exclamation point but then I ran the diagnostics and the second time I got to the login screen and managed to get on for a few seconds. I hastily made a note of the DCHP provided IP, snm , router, etc., and changed from DHCP to manual with those same settings. Now I can get onto that FON base station every time.

    So this problem is not solved by a nuke and install but the problem seems to be associated with DCHP handshaking as  wireshark indicated yesterday.

    Apple needs a bug fix.

  • by fallyhag,

    fallyhag fallyhag Jul 28, 2011 2:16 AM in response to lrogersinlv
    Level 1 (0 points)
    Jul 28, 2011 2:16 AM in response to lrogersinlv

    iMac and Macbook:

     

    Installed Lion last week and ever since my Wi-Fi keeps dropping out. It is easy to re-connect but if I am downloading something then the lost connection will interupt. Not great! This Wi-Fi issue seems linked to the Lion upgrade. Fingers crossed for a fix soon

  • by luisfromvigo,

    luisfromvigo luisfromvigo Jul 28, 2011 2:17 AM in response to lrogersinlv
    Level 1 (0 points)
    Jul 28, 2011 2:17 AM in response to lrogersinlv

    Someone has try to supprime the airport preferences file? (I can't do now, car i'm at work) but, if someone can test-it, maybe interessant.

  • by putnik,

    putnik putnik Jul 28, 2011 2:33 AM in response to Nicholas Burke
    Level 3 (795 points)
    Mac OS X
    Jul 28, 2011 2:33 AM in response to Nicholas Burke

    Maybe I did not make myself clear, I said  "But I expect it will be correctable without needing to go the whole re-install route".  Yes, that means don't go wiping your drives just yet! Whatever the solution may turn out to be.

  • by marwoodevents,

    marwoodevents marwoodevents Jul 28, 2011 2:37 AM in response to lrogersinlv
    Level 1 (0 points)
    Jul 28, 2011 2:37 AM in response to lrogersinlv

    I have exactly the same problem - all well with Snow leopard, internet switching off after installing Lion.

     

    Fortunately my iMac is next to the router so I have switched off the Wifi port and connected with an Ethernet cable - now all is well and another iMac in the building, still on Snow leopard, plus my iPad and iPhone are all working happily on WiFi.

     

    It's amazing that Apple have not issued a statement about this yet.

  • by nipper123,

    nipper123 nipper123 Jul 28, 2011 2:37 AM in response to putnik
    Level 1 (0 points)
    Jul 28, 2011 2:37 AM in response to putnik

    It is not just this community, go to twitter and search for "lion wifi". There are hundreds and maybe thousands ofpeople posting the same issue, so some poor Apple code jockey is pulling long nights and weekends to get a fix out.

  • by William Kucharski,

    William Kucharski William Kucharski Jul 28, 2011 2:47 AM in response to nipper123
    Level 6 (15,232 points)
    Mac OS X
    Jul 28, 2011 2:47 AM in response to nipper123

    Unfortunately I've tried on multiple platforms but have not been able to reproduce this, nor have many others, so if you can, please make sure you report your issue to AppleCare.

  • by putnik,

    putnik putnik Jul 28, 2011 2:56 AM in response to William Kucharski
    Level 3 (795 points)
    Mac OS X
    Jul 28, 2011 2:56 AM in response to William Kucharski

    I note that, going back a year, to the introduction of Snow Leopard, people were having the same problems.

     

    https://discussions.apple.com/thread/2202507?threadID=2202507&tstart=0

     

    There were two classic solutions at that time:

     

    Go Finder > Your HD > Library > Preferences > SystemConfiguration.

    Move the SystemConfiguration folder to your Desktop. (Don't delete it just yet)

    Restart.

     

    and

     

    Go into Keychain Access. Deleted all entries for WiFi. Restart AirPort. Re-entered password.

  • by nipper123,

    nipper123 nipper123 Jul 28, 2011 2:59 AM in response to William Kucharski
    Level 1 (0 points)
    Jul 28, 2011 2:59 AM in response to William Kucharski

    Well, William, first I suggest you search twitter for "lion wifi" and read the thousands of tweets about it. Then look at the number of visits here—now 11,000+— and then believe us when we say we're not imagining it. The thousands of people with the problem are a much bigger sample than your "multiple platforms" for sure and their experience of the bug should be believed by Apple!

     

    If I have time this W/E I will take this MBP into an Apple Store and let a Genius waste 3 or 4 hours trying too. Then s/he can file a report too.

     

    I am working at Japan's biggest manufacturer of wifi measuring equipment tomorrow on million-dollar test sets that are used in wifi R&D labs worldwide so I'll ask one of the engineers there to test the handshaking with the R&D base stations and to take a look at the wireshark output.

  • by Izwan I,

    Izwan I Izwan I Jul 28, 2011 3:24 AM in response to nipper123
    Level 1 (0 points)
    Jul 28, 2011 3:24 AM in response to nipper123

    Well i actually just bought the new MBA 13 inch last weekend and has not been able to use my home wi fi connection. It dropped every few minutes. The wi fi is working fine with my Ipad and Window based laptop.

     

    So the problem is there even with a new MBA with Lion pre-installed....

     

    Convinced my wife to get the MBA for her home laptop. Not a happy camper at this point.... hopefully a fix would come soon!

  • by William Kucharski,

    William Kucharski William Kucharski Jul 28, 2011 3:30 AM in response to nipper123
    Level 6 (15,232 points)
    Mac OS X
    Jul 28, 2011 3:30 AM in response to nipper123

    nipper123 wrote:

     

    Well, William, first I suggest you search twitter for "lion wifi" and read the thousands of tweets about it. Then look at the number of visits here—now 11,000+— and then believe us when we say we're not imagining it. The thousands of people with the problem are a much bigger sample than your "multiple platforms" for sure and their experience of the bug should be believed by Apple!

     

    If I have time this W/E I will take this MBP into an Apple Store and let a Genius waste 3 or 4 hours trying too. Then s/he can file a report too.

     

    I am working at Japan's biggest manufacturer of wifi measuring equipment tomorrow on million-dollar test sets that are used in wifi R&D labs worldwide so I'll ask one of the engineers there to test the handshaking with the R&D base stations and to take a look at the wireshark output.

     

    That would actually be quite helpful.

     

    I never said that it wasn't happening, but that I haven't seen it across around fifteen machines I've tried it on, nor have any of the few hundred engineers with Macs I work with.

     

    That's also why I said to contact AppleCare - because it's not a generic problem where every machine does it with every router; there's a specific combination of machine and router that is proving problematic and it's uncertain whether it's Lion that's at fault or a router firmware issue.

  • by nipper123,

    nipper123 nipper123 Jul 28, 2011 3:36 AM in response to Izwan I
    Level 1 (0 points)
    Jul 28, 2011 3:36 AM in response to Izwan I

    William, I see you have 13,000 posts so I guess you are an Apple engineer (in disguise). Here is a console log from the recent failed and then successful attempt after Net Diagnostics to get on a FON BST. Notice what is happening from 5:29:44. At 5:32:24 it was able to make a connection after the NetDiagnostics ran.  I guess this is where the problem is. I will collect similar logs from connection attempts at other BST tomorrow.

     

    7/28/11 5:29:27.048 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveHandleRedirect:2264 Unknown result value: 7, assuming online

    7/28/11 5:29:27.050 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown

    7/28/11 5:29:27.060 PM          configd          network configuration changed.

    7/28/11 5:29:32.157 PM          rpcsvchost          sandbox_init: com.apple.msrpc.netlogon.sb succeeded

    7/28/11 5:29:32.316 PM          configd          network configuration changed.

    7/28/11 5:29:32.336 PM          netbiosd          network address or mask changed for en1

    7/28/11 5:29:32.357 PM          configd          setting hostname to "MacBook2.local"

    7/28/11 5:29:37.361 PM          com.apple.launchd          (com.apple.smb.preferences) Throttling respawn: Will start in 5 seconds

    7/28/11 5:29:37.362 PM          com.apple.launchd          (com.apple.smb.preferences) Throttling respawn: Will start in 5 seconds

    7/28/11 5:29:37.362 PM          com.apple.launchd          (com.apple.smb.preferences) Throttling respawn: Will start in 5 seconds

    7/28/11 5:29:38.170 PM          UserEventAgent          ServermgrdRegistration cannot load config data

    7/28/11 5:29:38.170 PM          UserEventAgent          ServermgrdRegistration oldConfig is nil during net changed notification

    7/28/11 5:29:44.000 PM          kernel          AirPort: Link Down on en1. Reason 4 (Disassociated due to inactivity).

    7/28/11 5:29:44.000 PM          kernel          en1: BSSID changed to 00:00:00:00:00:00

    7/28/11 5:29:44.390 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe

    7/28/11 5:29:44.397 PM          configd          network configuration changed.

    7/28/11 5:29:53.000 PM          kernel          directed SSID scan fail

    7/28/11 5:29:59.386 PM          UserEventAgent          ServermgrdRegistration cannot load config data

    7/28/11 5:29:59.386 PM          UserEventAgent          ServermgrdRegistration oldConfig is nil during net changed notification

    7/28/11 5:30:04.739 PM          com.apple.launchd.peruser.501          (com.apple.NetworkDiagnostics[2412]) Check-in of Mach service failed. Already active: com.apple.NetworkDiagnostic.agent

    7/28/11 5:30:19.000 PM          kernel          directed SSID scan fail

    7/28/11 5:30:24.617 PM          com.apple.NetworkDiagnostics          ACNetworkAssociate returned -3905

    7/28/11 5:32:23.000 PM          kernel          Auth result for: 00:18:84:d5:61:6d MAC AUTH succeeded

    7/28/11 5:32:23.000 PM          kernel          AirPort: Link Up on en1

    7/28/11 5:32:23.000 PM          kernel          en1: BSSID changed to 00:18:84:d5:61:6d

    7/28/11 5:32:24.217 PM          airportd          _doAutoJoin: Already associated to “FON_FREE_INTERNET”. Bailing on auto-join.

    7/28/11 5:32:29.883 PM          configd          network configuration changed.

    7/28/11 5:32:29.923 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe

    7/28/11 5:32:29.925 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveStartDetect:2371 starting probe to determine captivity...

    7/28/11 5:32:29.925 PM          UserEventAgent          CaptiveNetworkSupport:wispr_detect_redirect_async:424 user-agent:"CaptiveNetworkSupport-173 wispr" url:"http://www.apple.com/library/test/success.html"

    7/28/11 5:32:34.271 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveHandleRedirect:2169 Redirect detected on en1 (FON_FREE_INTERNET)

    7/28/11 5:32:34.289 PM          UserEventAgent          CaptiveNetworkSupport:CNSPreferencesFlush:71 CNSPreferencesFlush

    7/28/11 5:32:34.290 PM          UserEventAgent          CaptiveNetworkSupport:CNSPreferencesFlush:114 Updated preferences

    7/28/11 5:32:34.290 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Websheet

    7/28/11 5:32:34.291 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveInteract:1752 Launching web sheet over en1 to http://www.apple.com/

    7/28/11 5:32:34.291 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveNotifyUserAgentLaunchWebSheetApp:239 Notifying All User Agents of Captive Interface

    7/28/11 5:32:38.947 PM          UserEventAgent          ServermgrdRegistration cannot load config data

    7/28/11 5:32:38.948 PM          UserEventAgent          ServermgrdRegistration oldConfig is nil during net changed notification

    7/28/11 5:33:17.565 PM          UserEventAgent          CaptiveNetworkSupport:wispr_detect_redirect_async:424 user-agent:"CaptiveNetworkSupport-173 wispr" url:"http://www.apple.com/library/test/success.html"

    7/28/11 5:33:17.565 PM          UserEventAgent          CaptiveNetworkSupport:CNSServerProbe:305 starting probe for client 28295, interface en1, probe=0x7f81d0d3daa0

    7/28/11 5:33:19.906 PM          UserEventAgent          CaptiveNetworkSupport:CNSProbeComplete:236 notifying client 28295 of completion, result=3

    7/28/11 5:33:40.624 PM          UserEventAgent          CaptiveNetworkSupport:wispr_detect_redirect_async:424 user-agent:"CaptiveNetworkSupport-173 wispr" url:"http://www.apple.com/library/test/success.html"

    7/28/11 5:33:40.625 PM          UserEventAgent          CaptiveNetworkSupport:CNSServerProbe:305 starting probe for client 25867, interface en1, probe=0x108b96dd0

    7/28/11 5:33:43.803 PM          UserEventAgent          CaptiveNetworkSupport:CNSProbeComplete:236 notifying client 25867 of completion, result=3

    7/28/11 5:34:51.908 PM          UserEventAgent          CaptiveNetworkSupport:wispr_detect_redirect_async:424 user-agent:"CaptiveNetworkSupport-173 wispr" url:"http://www.apple.com/library/test/success.html"

    7/28/11 5:34:51.908 PM          UserEventAgent          CaptiveNetworkSupport:CNSServerProbe:305 starting probe for client 28339, interface en1, probe=0x7f81d0d3daa0

    7/28/11 5:34:54.043 PM          UserEventAgent          CaptiveNetworkSupport:CNSProbeComplete:236 notifying client 28339 of completion, result=3

    7/28/11 5:36:17.493 PM          UserEventAgent          CaptiveNetworkSupport:wispr_detect_redirect_async:424 user-agent:"CaptiveNetworkSupport-173 wispr" url:"http://www.apple.com/library/test/success.html"

    7/28/11 5:36:17.493 PM          UserEventAgent          CaptiveNetworkSupport:CNSServerProbe:305 starting probe for client 35167, interface en1, probe=0x108bb1ac0

    7/28/11 5:36:17.846 PM          UserEventAgent          CaptiveNetworkSupport:CNSProbeComplete:236 notifying client 35167 of completion, result=0

    7/28/11 5:36:17.847 PM          UserEventAgent          CaptiveNetworkSupport:CNSServerParsePost:167 failed to scrape credentials

    7/28/11 5:36:17.848 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveWebsheetDone:1688 Websheet complete: Online

    7/28/11 5:36:17.850 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Online

    7/28/11 5:36:17.851 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveHandlePostAuthenticationCheck:1896 Setting up post auth check timer for 240 seconds..

    7/28/11 5:36:17.858 PM          configd          network configuration changed.

    7/28/11 5:36:17.881 PM          UserEventAgent          CaptiveNetworkSupport:WebSheetAppListRemoveNodeWithPort:211 Weird! No Apps exist! cannot delete!

    7/28/11 5:37:05.000 PM          kernel          AirPort: Link Down on en1. Reason 4 (Disassociated due to inactivity).

    7/28/11 5:37:05.000 PM          kernel          en1: BSSID changed to 00:00:00:00:00:00

    7/28/11 5:37:06.434 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe

    7/28/11 5:37:06.453 PM          configd          network configuration changed.

    7/28/11 5:37:21.434 PM          UserEventAgent          ServermgrdRegistration cannot load config data

    7/28/11 5:37:21.434 PM          UserEventAgent          ServermgrdRegistration oldConfig is nil during net changed notification

    7/28/11 5:37:29.000 PM          kernel          Auth result for: 00:18:84:69:19:fd MAC AUTH succeeded

    7/28/11 5:37:32.000 PM          kernel          Auth result for: 00:18:84:69:19:fd MAC AUTH succeeded

    7/28/11 5:37:32.000 PM          kernel          AirPort: Link Up on en1

    7/28/11 5:37:32.000 PM          kernel          en1: BSSID changed to 00:18:84:69:19:fd

    7/28/11 5:37:33.000 PM          kernel          en1: BSSID changed to 00:18:84:69:19:fd

    7/28/11 5:37:34.069 PM          ntpd          bind(25) AF_INET6 fe80::21e:c2ff:feb1:883f%6#123 flags 0x11 failed: Can't assign requested address

    7/28/11 5:37:34.069 PM          ntpd          unable to create socket on en1 (31) for fe80::21e:c2ff:feb1:883f#123

    7/28/11 5:37:39.692 PM          configd          network configuration changed.

    7/28/11 5:37:39.749 PM          UserEventAgent          CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe

    7/28/11 5:37:39.750 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveStartDetect:2371 starting probe to determine captivity...

    7/28/11 5:37:39.750 PM          UserEventAgent          CaptiveNetworkSupport:wispr_detect_redirect_async:424 user-agent:"CaptiveNetworkSupport-173 wispr" url:"http://www.apple.com/library/test/success.html"

    7/28/11 5:37:47.707 PM          UserEventAgent          ServermgrdRegistration cannot load config data

    7/28/11 5:37:47.707 PM          UserEventAgent          ServermgrdRegistration oldConfig is nil during net changed notification

    7/28/11 5:38:39.751 PM          UserEventAgent          CaptiveNetworkSupport:CaptiveHandleRedirect:2260 Timed out on en1 (FON_FREE_INTERNET), assuming online

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