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  1. #1


    Member Since
    Jul 05, 2013
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    Mac OS X Internet problems
    I own an iMac OS X and the Internet is having problems. Randomly, the DSL disconnects. When it connects again, I have to turn off WIFI and turn on again. When I play online games like Minecraft, it disconnects. Is it the internet or the iMac?

  2. #2

    harryb2448's Avatar
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    Nov 28, 2007
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    Specs:
    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    G'day and welcome to the forums.

    Sounds like DNS address problems. What model iMac and what version of OS X? When online go into Network > Advanced > DNS and check out what it says there. You may find it nec essary to change to say Google DNS of 8.8.8.8 Primary and 8.8.4.4 Secondary. Also have a read of this thread:-

    http://www.mac-forums.com/forums/int...ut-not-pc.html
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  3. #3


    Member Since
    Jul 05, 2013
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    Quote Originally Posted by harryb2448 View Post
    G'day and welcome to the forums.

    Sounds like DNS address problems. What model iMac and what version of OS X? When online go into Network > Advanced > DNS and check out what it says there. You may find it nec essary to change to say Google DNS of 8.8.8.8 Primary and 8.8.4.4 Secondary. Also have a read of this thread:-

    http://www.mac-forums.com/forums/int...ut-not-pc.html
    Model 21.5-inch, Mid 2011

    Version 10.7.5
    I tried changing the DNS but it still has the problem

  4. #4

    chscag's Avatar
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    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Quote Originally Posted by Awesomema111 View Post
    I own an iMac OS X and the Internet is having problems. Randomly, the DSL disconnects. When it connects again, I have to turn off WIFI and turn on again. When I play online games like Minecraft, it disconnects. Is it the internet or the iMac?
    It sounds more like interference to me. DNS problems generally cause the slow loading of web pages but not intermittent disconnects. At least that has been my experience.

    Are you in close proximity to other networks? Living in an apartment building? Do you own a wireless telephone at home? All these can cause interference and the intermittent loss of signal. Download the free iStumbler utility and run it. It will show other networks in your area and the channel and security they're using.

    Report back the results and we'll try to figure something out.

  5. #5


    Member Since
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    Left Picture: Internet connected

    Right Picture: Internet disconnected
    Attached Images Attached Images

  6. #6

    chscag's Avatar
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    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Read my reply to you above, no need to post pictures.

  7. #7


    Member Since
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    What should I report back?

  8. #8

    chscag's Avatar
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    Copy the results of what iStumbler reported and post them here.

  9. #9

    harryb2448's Avatar
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    Imac 27" Retina 5K, 512GB flash memory, 3.3GHz, 16GB memory, macOS Sierra beta.
    Charlie I thought iStumbler was OS X.6 Snow Leopard only, apart from a beta version 100 for Lion which is untested? Is there a later release I am not up with please?
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  10. #10

    chscag's Avatar
    Member Since
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    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    I'm using iStumbler with Mountain Lion Harry. All it says in the "About" is that it's release # 99. Here's the download LINK

    Works great. I just tested it again to make sure.

  11. #11


    Member Since
    Jul 05, 2013
    Posts
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    Mode: Network
    Network Name: 2WIRE694
    Level: 7 green bars
    Signal: 79%
    Noise: 9%
    Channel: 7
    Frequency: 2442
    Mac Address 00:1b:5b:4b:ba:11
    Vendor: 2wire
    Samples: 25
    Location: Nowhere

  12. #12

    chscag's Avatar
    Member Since
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    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    That information is not what we need. Take a look at my example screenshot and post the same thing from your copy of iStumbler.
    Attached Images Attached Images

  13. #13


    Member Since
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    late 2012 mini w/SSD
    Also, can you tell us WHAT the pictures above are (not you, chscag)? Is that your WiFi router, and your router is connected to a DSL modem? Or is that a DSL modem/router combo device? The red internet light might tell us something IF we know what device we're looking at.

  14. #14


    Member Since
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    Quote Originally Posted by chscag View Post
    That information is not what we need. Take a look at my example screenshot and post the same thing from your copy of iStumbler.
    Here it is
    Attached Images Attached Images

  15. #15


    Member Since
    Jul 05, 2013
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    Quote Originally Posted by gsahli View Post
    Also, can you tell us WHAT the pictures above are (not you, chscag)? Is that your WiFi router, and your router is connected to a DSL modem? Or is that a DSL modem/router combo device? The red internet light might tell us something IF we know what device we're looking at.
    Yes, it is my Router connected to DSL

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