Windows 8 and 8.1 Forums


Windows 8.1 - cannot see 5Ghz wifi networks

  1. #11


    Quote Originally Posted by wendelly View Post
    To my knowledge - the laptop came pre-loaded with Windows 8 - I have never been able to see 5Ghz networks. I guess that would be a crippling problem if that particular adapter does not work in dual band mode, as it was advertised as such in the Dell specification as "Intel(R) Dual Band Wireless-N 7260 2x2 B" which is an adapter specifically designed for Haswell-based laptops. Yikes .
    Yes I'd say they installed the wrong one because the device ID should say dual band so I'm not too surprised it didn't work with Windows 8 either. You might want to get in touch with Dell support and see what they say.

      My System SpecsSystem Spec

  2. #12


    Posts : 14
    Windows 8.1


    From Dell Support:
    "Yes, that’s absolutely fine, because the operating system won’t give you a detailed description of any hardware component, however there was only one version of this card produced and they are all dual band cards, there is no single band 7260 cards."
    What gives?
      My System SpecsSystem Spec

  3. #13


    What gives is that they are basically incorrect and I will explain why.

    Intel for some reason deems them all dual band but in reality only two of these models support the 5GHz frequency, the one you have supports Bluetooth and the 2.4 GHz frequency which I guess might be considered two bands.

    Check the specs in the link and yes the support specs are exactly as was reported using netsh.
    ARK | Intel® Wireless-N 7260

    From the Intel page it's the only one without support for 5GHz but does support Bluetooth and it's crazy but they all look the same. Notice this one only says Wireless-N 7260 Plus Bluetooth, no mention of dual band in the specs or the description page.
    Intel® Wireless-N 7260 Plus Bluetooth*

    Then we have the Dual Band Wireless-N plus Bluetooth.
    Intel® Dual Band Wireless-N 7260 Plus Bluetooth*

    We also have the Dual Band Wireless-AC 7260 Plus Bluetooth. This one is best if you have an AC type router.
    Intel® Dual Band Wireless-AC 7260 Plus Bluetooth*
      My System SpecsSystem Spec

  4. #14


    Posts : 14
    Windows 8.1


    I think you are exactly right. To prove it, here is a picture of the actual wireless card in my laptop; it is a 7260HMW BN, which is a single band 2.4 Ghz only card. I have asked Dell to replace the card with a dual band card (I have onsite repair).
    Click image for larger version
      My System SpecsSystem Spec

  5. #15


    Quote Originally Posted by wendelly View Post
    I think you are exactly right. To prove it, here is a picture of the actual wireless card in my laptop; it is a 7260HMW BN, which is a single band 2.4 Ghz only card. I have asked Dell to replace the card with a dual band card (I have onsite repair).
    Click image for larger version
    Yes I just updated to mention the Wireless AC version, too many versions to keep track of so no wonder there is some confusion.

    I think we finally cracked this case.
      My System SpecsSystem Spec

  6. #16


    Posts : 14
    Windows 8.1


    Yeah, I have an AC router, I am going to ask them to give me the 7260 AC card
      My System SpecsSystem Spec

  7. #17


    Quote Originally Posted by wendelly View Post
    Yeah, I have an AC router, I am going to ask them to give me the 7260 AC card
    You can get up to 867Mbps with that one, it couldn't cost much more but free is better.

    I'm running the Asus AC66U as an access point and it's working great at 877.5Mbps from 35 feet away using Asus PCI-e 66U NIC
      My System SpecsSystem Spec

  8. #18


    Posts : 14
    Windows 8.1


    Nice, I have the same model of router running the Asuswrt-Merlin build. That AC card should increase my throughput for sure given the performance you are seeing; I have a lot of leverage with Dell as I can just promise to return the laptop if they refuse to ante up a better card (it is within the 30 day return window).
      My System SpecsSystem Spec

  9. #19


    Quote Originally Posted by wendelly View Post
    I think you are exactly right. To prove it, here is a picture of the actual wireless card in my laptop; it is a 7260HMW BN, which is a single band 2.4 Ghz only card. I have asked Dell to replace the card with a dual band card (I have onsite repair).
    Click image for larger version
    how did dell responded to this problem? Did they solved the issue and did you get a new wifi card? Because i have the same problem but i don't get any help from dell...
    they promised somebody would come to fix my antenna and wifi card but nobody came. They also did not believe anything of this and that i got a wrong wifi card....
      My System SpecsSystem Spec

  10. #20


    Posts : 14
    Windows 8.1


    Dell actually responded very well once I proved that the wrong card had been installed in the laptop. They escalated the issue to their management team and are currently preparing a replacement laptop with the correct card in it. I strongly suggest you ask to speak to a supervisor if the service agent does not appear to take you seriously.
      My System SpecsSystem Spec

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Windows 8.1 - cannot see 5Ghz wifi networks
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