iMac won't detect wifi automatically

Discussion in 'iMac' started by jlyanks85, Feb 18, 2012.

  1. jlyanks85 macrumors 6502a

    Joined:
    Jan 3, 2008
    #1
    I've had my i7 2010 imac for a little over a year now and has given me no trouble at all.

    It always detected my wifi network automatically when waking up from sleep.

    Now all of a sudden the last couple days I have to manually find my network. Not really a big deal since the internet still works great, just strange that it would do this all of a sudden and no matter what "fix" I try to do it doesn't work.

    My only guess is when I updated to the newest firmware, because it seemed to start right after that.
     
  2. macfan3131 macrumors newbie

    Joined:
    Oct 13, 2011
    #2
    This happened to me when I had an Imac I bought a couple weeks ago. I took it back because I didn't find it acceptable it wouldn't find it's connection after waking up. I have since bought a Macbook Air. It was the update 10.7.3. This didn't happen to everyone, but to some. You can call Apple if you still have Applecare and there are several things they can do to try to make it work.

    I spent several hours on the phone with them and they had me download some sort of packet that sent information to their engineers. They got back with me several days later, but unfortunately the two other things they had me try didn't work. They said they are aware of the issue and for now I would just have to manually connect. It isn't a big deal, but what is frustrating as a Apple user for several years, it seems updates can bring bad luck for many users.

    I really wish Apple wouldn't have become so popular, I feel like these things didn't used to happen. I bought my Macbook Air and downloaded the 10.7.3 in the store and told them I would return it if didn't work. It has been fine, but I won't be doing updates to my computer when they come out, at least not until it's been awhile to see how they have worked for everyone else. I will also make sure my Air is backed up, so I can go back to the old update if I have to.
     
  3. richard13 macrumors 6502a

    Joined:
    Aug 1, 2008
    Location:
    Mill Creek, WA
    #4
    I'm having the same problem with my iMac. When waking from sleep my iMac is not reconnecting to the wireless network automatically. It must be manually connected. Also like you this only recently started happening. Not sure when but it's definitely been less than 2 months now.

    I do not have this problem with my MacBook Pro so I'm pretty sure it doesn't have to do with my network configuration or my Time Capsule. My guess is that some recent Software Update included new firmware or driver for the Atheros wireless nic on the iMac.

    For the record I spent the better part of today trying the various debugging methods found on these forums and nothing has worked so far.
     
  4. scrob macrumors member

    Joined:
    Jul 20, 2011
    Location:
    N. Ireland
    #5
    Same problem here, had my iMac since August and this annoying problem has just started over the past week or 2!!
     
  5. moonbeep macrumors member

    moonbeep

    Joined:
    Jan 19, 2012
    Location:
    Belfast,Northern Ireland
    #6
    Havent tried my iMac wirelessley yet,have an ethernet cable plugged in,updated to 10.7.3 a week ago,might try it and see if would be having the same problems...
     
  6. lamboman macrumors 6502

    Joined:
    Aug 13, 2011
    #7
    It is a bug, not a problem with your settings. I've had the problem with my iMac but not with my MBP. Nothing that I've tried has worked, and that includes setting up a location, clearing the entries in the Keychain, deleting and readding the access points on the list. It's only with 10.7.3 to me. Apple has been trying to fix the issue through the updates, but seems to have got it wrong with this one...hopefully it should be fixed in .4!
     
  7. jlyanks85 thread starter macrumors 6502a

    Joined:
    Jan 3, 2008
    #8
    It has to be a bug, since my MacBook air doesn't have this issue. Hopefully I can get it fixed whenever the next update comes along.
     
  8. SBacklin macrumors member

    Joined:
    Feb 13, 2011
    Location:
    Seattle, WA
    #9
    I have the issue too. Its rather annoying. I just wish Apple would get on the ball and fix it. Lol
     
  9. bushman4 macrumors 68000

    Joined:
    Mar 22, 2011
    #10
    Having the same problem with my IMAC 2011 after I downloaded recent update.
    Tried changing router etc nothing helps. Problem only only present when i'm on LION, When I use Bootcamp and am on Windows there's no problem.
     
  10. Subish macrumors member

    Joined:
    Dec 2, 2011
    #11
    I had this problem and I tried everything from redoing the connection to changing the router settings. What worked in the end was doing a "Repair Disk Permissions" in Disk Utility.

    My iMac no longer has a wifi issue now, I think this is the only time "Repair Disk Permissions" fixed anything..lol

    Hope this helps.
     
  11. PhoenixMac macrumors 65816

    Joined:
    Mar 7, 2010
    #12
    I'm pretty sure it is a iMac issue as my mbp nor my mac mini have this problem, just my iMac and it has only been happening recently also.
     
  12. Bear macrumors G3

    Joined:
    Jul 23, 2002
    Location:
    Sol III - Terra
    #13
    Newest firmware in what? If it's an Airport Extreme or Express Base Station, you could try downgrading one version and see if that helps.
     
  13. jlyanks85 thread starter macrumors 6502a

    Joined:
    Jan 3, 2008
    #14
    The 10.7.3 update I'm talking about. Ever since I downloaded that, the wifi problem started.

    How would I be able to downgrade anyway?
     
  14. Bear macrumors G3

    Joined:
    Jul 23, 2002
    Location:
    Sol III - Terra
    #15
    Sorry, when you said firmware, I thought you meant for a piece of hardware, and not a software update.
     
  15. richard13 macrumors 6502a

    Joined:
    Aug 1, 2008
    Location:
    Mill Creek, WA
    #16
    Hey guys.

    I just got off the phone with Apple Care and the representative confirmed with me that there is a known issue with the waking an iMac and having to manually re-connect to a wifi network starting with the Lion 10.7.3 update. He said that they've been receiving a lot of calls on this. He didn't give a time estimate but he was pretty sure that there would be a fix or at least a KB article forthcoming.

    In the meantime he suggested that I change my settings in System Preferences > Energy Saver to make it so the computer doesn't sleep. Other power saving settings can be left alone.

    While I'm not terribly happy that this issue is happening I am glad that Apple is aware of the problem and presumably working on a fix. :)
     
  16. indecisiveKid, Feb 22, 2012
    Last edited: Feb 22, 2012

    indecisiveKid macrumors newbie

    Joined:
    Feb 16, 2012
    #17
    Appple is working on a fix They sent me an email to participate in a wifi fix as I complained to AppleCare. I have no iMac now as I returned it but they are working on it.
     
  17. Taz Mangus macrumors 68040

    Taz Mangus

    Joined:
    Mar 10, 2011
    #18
    I have spoken with AppleCare about this issue and I was told that 10.7.3 introduced this issue only for iMacs. Unfortunately, I am also affect by this issue.
     
  18. richard13 macrumors 6502a

    Joined:
    Aug 1, 2008
    Location:
    Mill Creek, WA
    #19
    Apple posted a fix in Software Update yesterday regarding this bug. I have installed it and so far haven't encountered the problem anymore.
     
  19. scrob macrumors member

    Joined:
    Jul 20, 2011
    Location:
    N. Ireland
    #20
    YAY! Updated software last night, and now it connects to Wifi automatically again :D Good for Apple getting it sorted relatively quickly.
     

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