1. Joined : Jun 2015
    Silicon Valley
    Posts : 20
    W7/W8/W10
       09 Sep 2015 #1

    Intel PRO/Wireless 3945ABG is not recognized


    I updated W7x64 to W10 Pro x64. The machine is WXP generation notebook. My problem is that the Intel PRO/Wireless 3945ABG is not recognized or Network and Sharing Center - Change Adapter Settings does not list this adapter. The Device Manager does show the adapter but with exclamation mark.
    What I have done so far are uninstalling/reinstalling the adapter and installing the drivers in compatibility mode.
      My System SpecsSystem Spec


  2. Joined : May 2015
    Posts : 1,373
    Win 10 14393.51
       09 Sep 2015 #2

    A random suggestion: download the Windows 7 drivers and extract them to a directory. (7Zip, open source, may work for that.) In Device Manager, do the manual "update drivers" thing. Browse to the directory and see whether the drivers would install from there.

    Best of luck.
      My System SpecsSystem Spec


  3. Joined : Sep 2014
    Posts : 234
    10 preview 64bit
       09 Sep 2015 #3

    The driver for that card is on your comp.
    Go
    ControlPanel>deviceManager>select device(or problem device>Rightclick>Updatedriver>
    Select browse my comp>LET ME pick>UNCHECK show compatible hardware>
    Scroll down to Intel corp (left) scroll to 3945abg >next.


    Roy
    Attached Thumbnails Attached Thumbnails intel.PNG  
      My System SpecsSystem Spec


  4. Joined : May 2015
    Posts : 1,373
    Win 10 14393.51
       09 Sep 2015 #4

    hawkman said: View Post
    The driver for that card is on your comp.
    Go
    ControlPanel>deviceManager>select device(or problem device>Rightclick>Updatedriver>
    Select browse my comp>LET ME pick>UNCHECK show compatible hardware>
    Scroll down to Intel corp (left) scroll to 3945abg >next.


    Roy
    I didn't think to check that. They are indeed present. Wonder why they weren't installed automatically with Windows 10?
      My System SpecsSystem Spec


  5. Joined : Jun 2015
    Silicon Valley
    Posts : 20
    W7/W8/W10
       14 Sep 2015 #5

    I have concluded that either I have to use USB Wifi adapter or replace the WiFi adapter.
      My System SpecsSystem Spec


  6. Joined : Aug 2015
    Penn's Woods
    Posts : 1,176
    Windows 10 Home
       14 Sep 2015 #6

    churin said: View Post
    I have concluded that either I have to use USB Wifi adapter or replace the WiFi adapter.
    No luck with hawkman's suggestion? Otherwise, what drove you to that conclusion?
      My System SpecsSystem Spec


  7. Joined : Jun 2015
    Silicon Valley
    Posts : 20
    W7/W8/W10
       14 Sep 2015 #7

    That is part of my initial trouble shooting process. I noticed messages to the effect that the driver is installed successfully or the installed driver is the latest version. I tried a USB WiFi adapter at hand for WiFi abgn and found it work fine. I am still interested in trying an alternate mini PCI WiFi adapter and ordered one from eBay for $6.
      My System SpecsSystem Spec


  8. Joined : Jul 2016
    Posts : 2
    Windows 10
       29 Jul 2016 #8

    I have an old Acer Aspire 5920 (32-bit) laptop with an Intel PRO/Wireless 3945ABG adapter. I just forced it to upgrade from Windows 7 to Windows 10, I noticed straight away that the wireless was not working.

    I downloaded the Wireless_18.11.0_De132.zip from this page: https://downloadcenter.intel.com/download/25140 then ran the DPInst32.exe file inside the .zip. Nothing much seemed to happen, but on checking Device Manager, the system indicated that the driver is installed but "the device failed to start". I disabled the device, then enabled it - still nothing... getting bored I decided to deinstall and reinstall several times followed by rebooting the machine and each time checking for new hardware ...

    After reboot, I could connect to my network and it is running now perfectly.
      My System SpecsSystem Spec


  9. Joined : Jan 2014
    Posts : 952
    Windows 8.1, 10
       29 Jul 2016 #9

    Tekki Dan said: View Post
    I have an old Acer Aspire 5920 (32-bit) laptop with an Intel PRO/Wireless 3945ABG adapter. I just forced it to upgrade from Windows 7 to Windows 10, I noticed straight away that the wireless was not working.
    I also have an old Acer Aspire with that adaptor, running 32 bit. In my case I have to go into Device Manager, look at Properties and Power Management, and uncheck the option which says 'Allow the computer to turn off this device to save power'.

    Otherwise it works fine until the computer is put into Hibernate or Sleep, but then doesn't work when the computer wakes up. With Fast Startup turned on (the default in Power settings) the Shutdown option also caused it to stop working, because Shutdown is a form of Hibernate when Fast Statup is on.
      My System SpecsSystem Spec


 


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