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  1. #1
    External monitor turns off/weakens wireless

    Member Since
    May 19, 2010
    Posts
    3
    External monitor turns off/weakens wireless
    I just bought an Asus VH-242 to run alongside my 13' 2008 white MacBook. Unfortunately when I turn it on it totally interferes with the wireless network. I pinged 8.8.8.8 and had about 86% packet loss with the average time to network around 300ms. When I turned off and unplugged the monitor, I was averaging around 5% packet loss and 20ms to 8.8.8.8. So now I have a choice - internet, or productivity, because I can't use the Internet with the new external monitor plugged in.

    Has this happened to any of you? Are there any quick fixes to the problem? I'd rather not move my desk or the wireless router if I can help it. Thanks in advance.

  2. #2
    External monitor turns off/weakens wireless

    Member Since
    May 24, 2010
    Posts
    20
    This is just a shot in the dark here, but it sounds like you have some RF interference. Maybe your power or video cable are unshielded. Try swapping them out with some different cables.

  3. #3
    External monitor turns off/weakens wireless
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,172
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    I've seen this before with poorly shielded monitors. (Monitor radiates and interferes with Wifi signal) Sometimes a stronger WiFi signal can overcome it and other times changing the WiFi channel within the router fixes it.

    Also try substituting cables as has been suggested in the previous post. However, if I were you, I would return the monitor and buy another if possible.

    Regards.

  4. #4
    External monitor turns off/weakens wireless

    Member Since
    May 19, 2010
    Posts
    3
    I switched out the DVI cable for a different cable, which helped a little bit, but the wireless internet's still about four times as slow with the monitor plugged in. I know it's the monitor because I set up a different, unplugged in laptop next to the monitor and that one had interference as well.

  5. #5
    External monitor turns off/weakens wireless
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    45,172
    Specs:
    27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, iPhone 6+, 3 iPods, Yosemite
    That pretty much proves the monitor is radiating and causing interference. As I advised you in my previous post, return it and get a refund. (if possible)

    Regards.

  6. #6
    External monitor turns off/weakens wireless

    Member Since
    May 30, 2010
    Posts
    5
    Go the way of the hippies and use aluminum foil to shield that monitor. Try wrapping the power/video cables in some foil and see if your reception improves. If it does, go over the aluminum foil with some tape so it doesn't look too out of place.

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