1 49 50 51 52 53 Previous Next 2,266 Replies Latest reply: Mar 28, 2014 2:35 AM by WSR Go to original post Branched to a new discussion.
  • 750. Re: Wifi Constantly Dropping in Lion
    Gregory Zillgitt Level 1 Level 1 (20 points)

    IzzyJG99 wrote:

     

    Everyone I know who has a Post-2010 Mac or Airport built in 2010 or after doesn't have the problem. Everyone, like me, who has older hardware (Mid 2009 iMac and original Airport Express) have this problem.

     

     

    I have a 2011 Core I7 MBP with the wifi dropping problem. The computer shipped with 10.6.8, and it worked fine, just like my 2009 model did. Everything went to **** after the Lion updowngrade.

     

    10.7.2 did'nt fix the problem for me. Unbelievable that this is still an issue after all this time. I've been an Apple owner and advocate since 1981, but this is making me consider whether I want to stay with their computers. Wireless internet is critical, and WIndows does it reliably. OS X, not so much.

  • 751. Re: Wifi Constantly Dropping in Lion
    wifiguru Level 2 Level 2 (230 points)

    togume/izzzyJ,

    What signal strength are you guys seeing the network at ?

    Run this command in Terminal and it should give you an idea.

    /System/Library/PrivateFrameworks/Apple80211.framework/Resources/airport -I -s

     

    Paste the output here if you need help understanding it. What Access Point make/model and security are you guys using ?

  • 752. Re: Wifi Constantly Dropping in Lion
    Abhishek S Level 1 Level 1 (0 points)

    Reporting again..

     

    i was happy user till snow leopard. Since Lion...

     

    1. Cisco linksys - WRT54G latest version - Lion connects but connection very slow.

    2. Tried everything suggested in forum - Change network - What the ****, my Ipad is doing fine

    3. Changed linksys to Airport Express - Lion connected, got some speed - not as Snow Leopard

     

    Now connection drops often. Once dropped it takes lots of time to search again too.

    While it keeps on searching iPad is happy and can communicate.

     

    iMac 27, Lion 10.7.2

    Airport express : 7.5.2

    Signal strengh good enough...

     

         agrCtlRSSI: -78

         agrExtRSSI: -84

        agrCtlNoise: -96

        agrExtNoise: -96

              state: running

            op mode: station

         lastTxRate: 81

            maxRate: 300

    lastAssocStatus: 0

        802.11 auth: open

          link auth: wpa2-psk

              BSSID: XYZ

               SSID: XYZ1

                MCS: 4

            channel: 149,1

  • 753. Re: Wifi Constantly Dropping in Lion
    gkillmaster Level 1 Level 1 (0 points)

    Just got off the phone with Apple engineer. Apparantly my laptop no longer can detect the airport card inside.

    These possibilites came up.

     

    1) the OS (10.7.2) has a bug that is not allowing it to see my airport card

    2) the OS has damaged the card

    3) my airport card broke gradually, a little bit right around the time I updated to 10.7.1 and then completely at the extact instant I installed 10.7.2

     

    I have an appointment to take is to the Apple store next Tuesday. I'll report back.Luckily, this issue is covered under the support policy of my recent purchase of Lion. Good since I didn't have AppleCare.

  • 754. Re: Wifi Constantly Dropping in Lion
    apple_boy_ut Level 1 Level 1 (0 points)

    I just updated my imac lion x to 10.7.2 and my wifi seems to be working fine now.  Not having any issues seen before so far.  I did remove the my home wireless profile and re-added it.  Just to be sure.

  • 755. Re: Wifi Constantly Dropping in Lion
    mponzi Level 1 Level 1 (0 points)

    I am having slightly different WIFI problems since upgrading to Lion (10.7.2 update hasn't helped either).

     

    My late 2010 i7 MBP now will not lock onto (or automatically switch to) the strongest router signal in the house. My wife is running Snow Leopard on her 2009 MBP and does not have this problem. My MBP running Lion is the only problem and it started as soon as I upgraded.

     

    Our wireless network utilizes and Airport Extreme Base Station (main / DHCP server) and an Airport Express, wired via ethernet and running in bridge mode.  Both use the same network ID and password. This setup was recommended by Apple and previously worked fine.

     

    As you move thru the house, the Mac would automatically switch to the router with the strongest signal.  It might take a few seconds, but it worked consistently.  When waking from sleep, it would also automatically lock onto the strongest router signal no problem.

     

    Now (on my MBP only) WIFI always seems to lock onto the main (Extreme) regardless of where I am in the house.  I have to manually select the Express  when I need it.  Occasionally the Mac will also automatically switch back to the Main router.

     

    I have re-started the routers and deleted my WIFI history.  No different.  Pretty frustrating but it seems to be related to the Airport card's detection of the best network.

     

    Any suggestions?  Thank you!

  • 756. Re: Wifi Constantly Dropping in Lion
    lupunus Level 3 Level 3 (995 points)

    Abhishek S wrote:

     

         agrCtlRSSI: -78

         agrExtRSSI: -84

        agrCtlNoise: -96

       agrExtNoise: -96

              state: running

            op mode: station

        lastTxRate: 81

            maxRate: 300

    lastAssocStatus: 0

        802.11 auth: open

          link auth: wpa2-psk

              BSSID: XYZ

               SSID: XYZ1

               MCS: 4

           channel: 149,1

    As you are running a 802.11n 5GHz wireless, the reported values are very down south.

     

    The SNR (Signal to Noise Ratio) is 10 db (Noise - RSSI) what is close to NO connection.

     

    Even if good enough for streaming sound to Airport Express or a Internet page to iPad, that values are lightyears away from a good signal.

     

    You should check this --> http://mobileoffice.about.com/od/wifimobileconnectivity/tp/troubleshoot-wireless -problems-dropped-signals.htm

     

    Imagine the wifi radio signal field as flat lying Mentos with your Cisco in the center. For that, you should check that there is a maximum line of sight and no obstacles between the Mac and the Router.

     

     

    Lupunus

  • 757. Re: Wifi Constantly Dropping in Lion
    mampo Level 1 Level 1 (0 points)

    Hi wifiguru,

     

    I usually get an SNR of more than 20dB (router is upstairs, concrete floors inbetween):

         agrCtlRSSI: -65

         agrExtRSSI: 0

        agrCtlNoise: -89

        agrExtNoise: 0

              state: running

            op mode: station

         lastTxRate: 11

            maxRate: 54

    lastAssocStatus: 0

        802.11 auth: open

          link auth: wpa2-psk

              BSSID: XXXXXX

               SSID: XXXXX

                MCS: -1

            channel: 3

     

    This is not much, but never was a problem on my old MBP with Snow Leopard.

    With Lion, I had trouble with this SNR, but I also had trouble sitting next to the router with SNR of more than 40:

         agrCtlRSSI: -44

         agrExtRSSI: 0

        agrCtlNoise: -89

        agrExtNoise: 0

              state: running

            op mode: station

         lastTxRate: 11

            maxRate: 54

    lastAssocStatus: 0

        802.11 auth: open

          link auth: wpa2-psk

              BSSID: xxxxxx

               SSID: xxxxxxx

                MCS: -1

            channel: 3

     

     

    In the beginning with Lion my problems were unbearable (I could not even print to my network printer without dropouts and problems), now (newer seeds) I still get dropouts, but a lot less.

     

    Even close to the router the connection is not perfect.

     

    What is a bit weird though, is that in Lion the signal in the menu bar looks always perfect (full bars), but isn't.

    Even if the SNR is closing in on 0, still full bars.

    This is not good and this was different in my old MBP with Snow Leopard.

     

    Regards,

     

    Martin

  • 758. Re: Wifi Constantly Dropping in Lion
    wifiguru Level 2 Level 2 (230 points)

    Abhishek,

    -78 is not a very good signal strength. Can you check from a location where the signal strength is between -35 and -70.

  • 759. Re: Wifi Constantly Dropping in Lion
    wifiguru Level 2 Level 2 (230 points)

    Have you verified the issue is not with your ISP ? Do this - Launch Terminal and paste

    ping x.x.x.x

    where x.x.x.x is your router IP address. When you notice the stalls, check if this ping outout drops.

    Another thing to try is to switch channels. Pick say channel 11 and see if your network is good. This will help eliminate some other issues.

    Sometimes you set your network up and a neighbor changes his wireless network and this starts affecting your network. So changing channels is an easy option to try.

  • 760. Re: Wifi Constantly Dropping in Lion
    Paul891 Level 1 Level 1 (0 points)

    Experienced the same problem with wifi dropping out every few minutes since upgraded to Lion a few days ago.

     

    Another problem I've experienced is that the MAC is not recognising my Western Digital  Mybook external harddrive since the upgrade.

     

    Here's the good news, disconnecting the external harddrive completely appears to have resolved the wifi problem. Not sure why this has worked, possibly something to do with electrical interference blocking the wifi signal, but wifi not dropped out since I removed the harddrive.

  • 761. Re: Wifi Constantly Dropping in Lion
    lupunus Level 3 Level 3 (995 points)

    Paul891 wrote:

     

    Another problem I've experienced is that the MAC is not recognising my Western Digital  Mybook external harddrive since the upgrade.

     

    Here's the good news, disconnecting the external harddrive completely appears to have resolved the wifi problem.

    I guess you did not unplug the hard drive before updating.

    Apple recommends to remove ALL external devices before performing a EFI update or major OS upgrade.

     

    You should remove all peripheral hardware and unplug Ethernet connection and perform a SMC / PRAM / NVRAM (depending on Mac model) reset.

     

    Lupunus

  • 762. Re: Wifi Constantly Dropping in Lion
    Elbfrosch Level 1 Level 1 (0 points)

    For me 10.7.2 didn't solve the WiF dropping issue on my Air 2011 either.

     

    And it is no way to discuss changing router setting and similar tries because with SL these probs never occurred and the WiFi is our campus-WiFi which will not change because Apple is not apple to solve self made problems.

     

    Yes, I sound angry because Lion and now even two updates did not perform right and Apple is not reacting.

     

    Just to note: my Windows 7 Laptop which I am forced to use on campus too, works fine....

  • 763. Re: Wifi Constantly Dropping in Lion
    Paul891 Level 1 Level 1 (0 points)

    Lupunus

     

    I'm grateful for your reply. I was unawre that it was necessary to remove peripheral hardware and there was no warning from Apple during any of the upgrade process.

     

    On my system it is PRAM reset. As I've not done anything like this before is there anything else I should be aware before starting the process?

     

    Is there any chance I will lose information/ files etc?

     

    Once I've completed this type of restart do I have to do anything else?

     

    Thank you

  • 764. Re: Wifi Constantly Dropping in Lion
    lupunus Level 3 Level 3 (995 points)

    Paul891 wrote:

     

    On my system it is PRAM reset. As I've not done anything like this before is there anything else I should be aware before starting the process?

     

    Is there any chance I will lose information/ files etc?

    You will lose some settings; e.g. Startup volume choice and DVD Region setting.

    For that, after PRAM you you have to set the startup volume again.

     

    OS X - What's stored in PRAM? -> http://support.apple.com/kb/HT1242

     

    Resetting PRAM -> http://support.apple.com/kb/ht1379

     

     

    Lupunus

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