PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP

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  1. Posts : 7,351
    Windows 7 HP 64
    Thread Starter
       #11

    Success, at last.
    Under device manager, I uninstalled the Qualcomm Atheros AR9485 driver. A refresh showed the needed driver.
    I tried once again the CD that came with the adapter without running the setup. I searched for the drive on the CD and found one Under Win 7 64. Voila.
    The only problem is that the signal is very, very weak.
    Attached Thumbnails Attached Thumbnails PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP-netsh1a.jpg   PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP-netsh1b.jpg  
      My Computers


  2. Posts : 2,798
    Windows 7 x64, Vista x64, 8.1 smartphone
       #12

    Megahertz07 said:
    Success, at last.
    Under device manager, I uninstalled the Qualcomm Atheros AR9485 driver. A refresh showed the needed driver.
    I tried once again the CD that came with the adapter without running the setup. I searched for the drive on the CD and found one Under Win 7 64. Voila.
    The only problem is that the signal is very, very weak.


    Signal strength should improve with time. Otherwise, use netsh to disable/enable autotuning, if that helps.

    netsh interface tcp set global autotuning=disabled

    netsh interface tcp set global autotuning=normal
      My Computer


  3. Posts : 7,351
    Windows 7 HP 64
    Thread Starter
       #13

    Under device manager I did a search for update:
    - Fist on the drive I downloaded from Tp-Link site. It did a update and worked.
    - Then on the drive I downloaded from internet for Qualcomm Atheros AR9485. It did a update and worked. This is now the current driver.

    The only problem now is the weak signal.
    - I'm using a 1.8 / 5dBi external antenna
    - Channel 1 (that may be interfering with other routers)
    Attached Thumbnails Attached Thumbnails PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP-signal1.jpg  
    Last edited by Megahertz07; 06 Dec 2018 at 16:08.
      My Computers


  4. Posts : 7,351
    Windows 7 HP 64
    Thread Starter
       #14

    Made some changes to the Router (MAC filter ON and Bandwidth from 20 to 40MHz)

    Thank you Roy and Iko
    Attached Thumbnails Attached Thumbnails PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP-signal2.jpg   PCIe Wi-Fi class N (150Mbps) ONLY doesn't work under Win7 HP-speedtest.jpg  
      My Computers


  5. Posts : 7,351
    Windows 7 HP 64
    Thread Starter
       #15

    It's working on my SSD (daily use) but can't make it work on my maintenance HDD.
      My Computers


  6. Posts : 7,351
    Windows 7 HP 64
    Thread Starter
       #16

    Now I can say it's 100% solved.

    I did a Win 7 HP SP1 clean install on an old HDD. After installing all MB drivers and BEFORE any update the WN781ND and the WN821N installed without any problems.
    Then I installed all the updates and everything is working fine. Then I cloned the installation to the SSD.

    So my conclusion is that a Windows update prevented the proper N781ND and the WN821N installation.
      My Computers


  7. Posts : 16,149
    7 X64
       #17

    Megahertz07 said:
    So my conclusion is that a Windows update prevented the proper N781ND and the WN821N installation.

    Not necessarily.

    Have you tried:

    1. Update the installation media with Simplix

    2. Install that updated image to a spare partition.

    3.Then install drivers for your new router.

    Probably that will be fine.



    It is possible that on your previous installation that windows downloaded several drivers for your Lan card, then there were drivers for your other router, then finally for your new router. Something might have got messed up there. It could be something else - impossible to know if you had your previous installation running for quite some time

    It is not necessarily the actual updates ( .msu and .cabs )
      My Computers


 
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