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Thread: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

  1. #1
    Join Date
    Aug 2011
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    37

    WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I have an imac fall 2009 21.5" at home. I have been a big fan of apple. I have very recently upgraded my imac with the Mac OS X lion update. After this update I am having problems related to the WIFI connection. I have noticed that after this update, my WIFI connection is dropping down constantly. I have to turn off the WIFI every minute. I have tried connecting but I did not find any success. I want to know that how I can fix this problem. Any suggestions regarding this would be highly appreciated.

  2. #2
    Join Date
    Aug 2011
    Posts
    36

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I would like to ask you few questions before I start to provide solution. So my questions are below,
    • What is the strength of the signal of the wireless network that you see? I hope you know what I am saying. If you don’t know to check it then I would say that. Press the option key and click on the WIFI menu extra and you will come to know the strength of the signal. A good signal is between -40 and -70. If the signal is lower than -70 then also there is no issue and it will work.
    • Tell me that do you get IP address when you connect?
    • When connection of WIFI drops down does the Wi-Fi Menu Extra grey out?
    • Can you ping your wireless router?

  3. #3
    Join Date
    Nov 2009
    Posts
    1,292

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    Well I am facing the same issue with me. Actually my WI-FI is working fine for me but I have seen that there has been connection dropping down 3 or 4 times. My friend is also having the same problem. I don’t know why this is happening.

  4. #4
    Join Date
    Nov 2009
    Posts
    1,269

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I think you can try out this method but I am not sure whether it will fix the issue or not. There is no harm in trying it. I also used to face the WI-FI drop down problem. There is an applescript below; it is saved as application with stay open ticked.
    try
    repeat
    do shell script "ping -c 1 <replace with ip address of router>"
    delay 5
    end repeat
    end try

  5. #5
    Join Date
    Nov 2008
    Posts
    1,185

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I would suggest you to try to run the following command in the terminal,
    sudo /usr/libexec/airportd debug +alluserland +alldriver +allvendor
    sudo /usr/libexec/airportd logger
    After this, try to reproduce the issue where the machine drops WI-FI. Copy and paste the output in the Terminal app. here.

  6. #6
    Join Date
    Sep 2011
    Posts
    10

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I would like to know that what are the Energy Saver settings on your Mac? Does increasing the Sleep time help?

  7. #7
    Join Date
    Nov 2009
    Posts
    1,035

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I think you should do some changes in the WI-FI settings. I would suggest you to a blank Network Preferences window:
    • Remove the Wi-Fi connection and Bluetooth DUN from Network Preferences
    • Create a new location in Network Preferences & removed the "Automatic" entry
    • Add a new Wi-Fi connection
    • Set DNS address settings to 8.8.8.8 (Google public DNS), and 8.8.1.1
    • Set Service Order to Wi-Fi at the top of the list
    • Reboot the router & Mac-book
    I hope this helps.

  8. #8
    Join Date
    May 2008
    Posts
    859

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I would say that try to reset the SMC. For this try to follow the following steps and after them you should try to connect the WI-FI,
    • Press Command + Option + Escape to force quit any application that is not responding.
    • Put your Mac to sleep by choosing the Apple menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
    • Restart your Mac by choosing the Apple menu from the upper-left menu bar and then choosing Restart.
    • Shut down your Mac by choosing the Apple menu from the upper-left menu bar and then choosing Shut Down.

  9. #9
    Join Date
    May 2008
    Posts
    962

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I think this issue is because of driver installed. If it is occurring while using the recovery option then definitely it is a driver problem. I also have a Mac book Pro 15" Mid 2010. When I try to boot to new lion recovery partition, I am not able to access WI-FI network. I tried SMC reset, PRAM reset but I couldn’t find any help. I also tired to reboot my Airport Express and Time Machine and changed the channel settings on each.

  10. #10
    Join Date
    May 2008
    Posts
    991

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I would suggest you to go for trying,
    • Resetting SMC.
    • Removing Bluetooth PAN.
    • Removing and re-adding network settings.
    • Fixing IP.
    • Adding extra DNS servers.
    • Deleting lists and re-setting up network.
    • Moving order of services to promote Wi-Fi.
    • Switching off Time Machine.
    • Fixing Location / Adding new location.
    • Removing all preferred networks.
    • Turning round three times while saying the name of the Scottish Play.

  11. #11
    Join Date
    Nov 2009
    Posts
    865

    Re: WI-FI connection drops down constantly after upgrading Mac OS X Lion v.10.7

    I would suggest you to try out these tips; they are basic but work in some cases:
    • Try to Turn wireless on & off
    • Reboot the Mac
    • Reset the Router
    There is advanced WI-FI troubleshooting tips that you can find on the website.

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