Jon Moo
Level 1 (0 points)

Q: Internet Connection constantly drops off over Wi-fi

Hello there

 

I'm using a 24-inch, early 2008 iMac with OSX 10.7.5 connected over wi-fi to a 2TB AirPort Time Capsule with latest firmware update which serves as a wireless internet access point.

 

My problem is that on the iMac the internet connection constantly drops off (like every 20-30 seconds).

The network still works (i can still see my time capsule in Airport Utility with the green dot, while Internet shows the yellow dot, meaning the the internet is disconnected). Also the physical led on the time capsule is always green, meaning that it's still receiving signal.

 

The internet connection automatically restores after 10 seconds, then drops off, and so on.

 

I can tell that the problem is related with my iMac and not with the Time Capsule because when the internet connection drops off on the iMac, the internet connection on my iPad (connected to the same wi-fi network) works just fine.

 

thanks in advance for any help

 

JM

iMac, Mac OS X (10.7.5)

Posted on Jul 1, 2013 9:46 AM

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Jon Moo

Q: Internet Connection constantly drops off over Wi-fi

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  • by BDAqua,

    BDAqua BDAqua Jul 1, 2013 10:33 AM in response to Jon Moo
    Level 10 (123,825 points)
    Jul 1, 2013 10:33 AM in response to Jon Moo

    Hello Jon, try this...

     

    Make a New Location, Using network locations in Mac OS X ...

     

    http://support.apple.com/kb/HT2712

     

    10.5, 10.6, 10.7 & 10.8…

     

    System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.

     

     

    10.5.x/10.6.x/10.7.x/10.8.x instructions...

     

    System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.

     

    The interface that connects to the Internet should be dragged to the top of the list.

     

    10.4 instructions...

     

    Is that Interface dragged to the top of Network>Show:>Network Port Configurations.

    If using Wifi/Airport...

     

    Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.

     

    For 10.5/10.6/10.7/10.8, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...

     

    208.67.222.222

    208.67.220.220

     

    (There may be better or faster DNS numbers in your area, but these should be a good test).

    Click OK.

     

     

    If that doesn't work try changing channels on your Router.

  • by Jon Moo,

    Jon Moo Jon Moo Jul 1, 2013 11:31 AM in response to BDAqua
    Level 1 (0 points)
    Jul 1, 2013 11:31 AM in response to BDAqua

    Hey BDAqua thanks for the reply.

    I did what you said but, unfortunately, it did not work.

    After some testing, I'm afraid this could be a hardware problem, as the issue seems to show up in windows via bootcamp too.

    Anyway I'll try to change wireless channels as you suggested. Let's see...

  • by Jon Moo,

    Jon Moo Jon Moo Jul 1, 2013 11:55 AM in response to Jon Moo
    Level 1 (0 points)
    Jul 1, 2013 11:55 AM in response to Jon Moo

    Uhmm...accessing to the 5Ghz version of the network (Automatic Channel - 100) does not seem to provide any change.

    Can you suggest a particular channel that I can set manually?

     

    Thanks again

     

    JM

  • by Linc Davis,

    Linc Davis Linc Davis Jul 1, 2013 10:34 PM in response to Jon Moo
    Level 10 (208,037 points)
    Applications
    Jul 1, 2013 10:34 PM in response to Jon Moo

    Intel-based Macs: Resetting the System Management Controller (SMC)

  • by Jon Moo,

    Jon Moo Jon Moo Jul 2, 2013 1:33 AM in response to Linc Davis
    Level 1 (0 points)
    Jul 2, 2013 1:33 AM in response to Linc Davis

    Thank you Linc Davis, tried that but it didn't help.

  • by Linc Davis,

    Linc Davis Linc Davis Jul 2, 2013 6:22 AM in response to Jon Moo
    Level 10 (208,037 points)
    Applications
    Jul 2, 2013 6:22 AM in response to Jon Moo

    Back up all data.

    Triple-click the line below the line you're reading now to select it:

    /Library/Preferences/SystemConfiguration

    Right-click or control-click the highlighted line and select

    Services ▹ Reveal

    from the contextual menu.* A folder should open with an item selected. Move the selected item to the Desktop. Reboot and test. You will have to recreate your network settings.

    *If you don't see the contextual menu item, copy the selected text to the Clipboard (command-C). In the Finder, select

    Go ▹ Go to Folder...

    from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.You may be prompted for your administrator password.

  • by moocherx,

    moocherx moocherx Jan 10, 2014 9:47 AM in response to Jon Moo
    Level 1 (0 points)
    Jan 10, 2014 9:47 AM in response to Jon Moo

    Sorry to resurrect an old thread, but this has started happening to me on a brand new macbook pro (it never happened on my macbook air)

     

    I wonder if you ever resolved the problem?

  • by Donald Morgan,

    Donald Morgan Donald Morgan Jan 10, 2014 11:23 AM in response to Jon Moo
    Level 6 (12,783 points)
    Jan 10, 2014 11:23 AM in response to Jon Moo

    Hate to but in but I suggest changing your channel to 10. (reason)

    Most Routers come from the factory pre set as default Channel 6.

    That being said those that are not aware of this means that almost all networks in your Area could be using channel 6.