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Thread: 5Ghz wifi -- how to make it work

  1. #1
    Join Date
    Dec 2006
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    292
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    Ubuntu 14.04 Trusty Tahr

    5Ghz wifi -- how to make it work

    Intel 5100AGN (dual band, 2.4Ghz & 5Ghz)
    iwlwifi driver
    Ubuntu 12.04
    Asus RT-N53 (dual band, 2.4Ghz & 5Ghz)


    I have set up a wifi network with different SSIDs for the different bands. I can see the 2.4Ghz band, but not the 5Ghz band. Using "sudo iwlist scan" shows no 5Ghz entries, but "sudo iwlist wlan0 channel" does indicate that the card is capable of both bands.

    What must I do to see the 5Ghz band?

    And please, please, please, no comments on disabling N in the drivers. I see that "solution" plastered all over the internet, and it is totally unacceptable.

  2. #2
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    Re: 5Ghz wifi -- how to make it work

    ~
    Last edited by ahallubuntu; June 24th, 2013 at 09:55 PM.

  3. #3
    Join Date
    Dec 2006
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    Re: 5Ghz wifi -- how to make it work

    Thanks for your reply, ahallubuntu.

    I was mistaken; I meant to say the problem exists with a system running 13.04.

    I have an Asus G1 laptop with an Intel 5100AGN running Ubuntu 12.04, and it sees the 5Ghz band without any problem.

    My Acer Aspire One 110, also with an Intel 5100AGN updated to Ubuntu 13.04 does not see the 5Ghz band. Yes, this has been tested in the same room as the wireless access point.

  4. #4
    Join Date
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    Ubuntu 14.10 Utopic Unicorn

    Re: 5Ghz wifi -- how to make it work

    Quote Originally Posted by ahallubuntu View Post
    You shouldn't have to do anything. My 5100 picks up dual band / 5GHZ no problem in 12.04.

    However, keep in mind that 5GHZ doesn't have the same range that 2.4GHZ has. If you are only marginally able to pick up your 2.4GHZ signal from one location, you may not be able to pick up 5GHZ at all. Can we assume you're tried sitting in the same room as the router?
    Please tell me the make and model of your access point or router for my further research. Thanks.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D.

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