Wireless network adapter not detected

bagavan

New Member
Power User
Messages
634
Location
bangalore
I upgraded to 8.1 and now my wireless connectivity is lost. I have installed the latest driver model for my device but still it is not working

err.PNG
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
I have a pretty good idea of what the problem might be, this is becoming a common problem with Windows 8 or 8.1, in fact I've already fixed this exact problem with the steps below. :)

First run the sfc /scannow command, use an elevated command prompt for this, use option 2 in the link below.
http://www.eightforums.com/tutorials/3047-sfc-scannow-command-run-windows-8-a.html

It's required to reboot the machine after the scan completes which can take awhile depending on the amount of file corruption. It might seem to stop for some time, just let it finish then reboot the machine.

The wireless adaptor may starting working again after this scan but the store corruption is still there.

After reboot open the elevated command prompt again and run the command > Dism /Online /Cleanup-Image /RestoreHealth it might mention that it's fixed something. Reboot again and run sfc /scannow again, it should come up clean this time.

This should fix the store corruption which caused the problem and the wireless NIC should now be working.
 

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
I have a pretty good idea of what the problem might be, this is becoming a common problem with Windows 8 or 8.1, in fact I've already fixed this exact problem with the steps below. :)

First run the sfc /scannow command, use an elevated command prompt for this, use option 2 in the link below.
http://www.eightforums.com/tutorials/3047-sfc-scannow-command-run-windows-8-a.html

It's required to reboot the machine after the scan completes which can take awhile depending on the amount of file corruption. It might seem to stop for some time, just let it finish then reboot the machine.

The wireless adaptor may starting working again after this scan but the store corruption is still there.

After reboot open the elevated command prompt again and run the command > Dism /Online /Cleanup-Image /RestoreHealth it might mention that it's fixed something. Reboot again and run sfc /scannow again, it should come up clean this time.

This should fix the store corruption which caused the problem and the wireless NIC should now be working.

I will try this and I will post back

note that I have special key that turns on wireless radio. Even if I press the key the radio is not turning on.

How cum a installed copy have corruption?
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
I have a pretty good idea of what the problem might be, this is becoming a common problem with Windows 8 or 8.1, in fact I've already fixed this exact problem with the steps below. :)

First run the sfc /scannow command, use an elevated command prompt for this, use option 2 in the link below.
http://www.eightforums.com/tutorials/3047-sfc-scannow-command-run-windows-8-a.html

It's required to reboot the machine after the scan completes which can take awhile depending on the amount of file corruption. It might seem to stop for some time, just let it finish then reboot the machine.

The wireless adaptor may starting working again after this scan but the store corruption is still there.

After reboot open the elevated command prompt again and run the command > Dism /Online /Cleanup-Image /RestoreHealth it might mention that it's fixed something. Reboot again and run sfc /scannow again, it should come up clean this time.

This should fix the store corruption which caused the problem and the wireless NIC should now be working.

I will try this and I will post back

note that I have special key that turns on wireless radio. Even if I press the key the radio is not turning on.

How cum a installed copy have corruption?

All I know is that I had the exact same error message with my wireless NIC and the scans are what fixed it, it happened shortly after upgrading to Windows 8.1.

Is this a problem directly after the upgrade to 8.1?
 

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
I upgraded to 8.1. The wireless internet worked for few mins and then this problem has occurred.
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
I upgraded to 8.1. The wireless internet worked for few mins and then this problem has occurred.

That is strange, let me know if the sfc scan shows problems, if so then following the directions I posted will most likely fix the problem.

If sfc comes up clean and because this is a fresh install you could also use the refresh or reset Windows features.

http://www.eightforums.com/tutorials/2293-refresh-windows-8-a.html

http://www.eightforums.com/tutorials/2302-reset-windows-8-a.html
 

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
I did a refresh. same problem. it updated something through windows update and my wireless adapter has been turned off

I am trying DISM command now
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
store corruption repaired some corrupt files, restarted. But still not working
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
I did a refresh. same problem. it updated something through windows update and my wireless adapter has been turned off

I am trying DISM command now

store corruption repaired some corrupt files, restarted. But still not working

Yes check DISM, see what it says, ok it did repair something but did it say that the problems have been repaired?

What did sfc /scannow say? You may need to run either of those scans more than once rebooting between scans before they will come up clean.

It sounds like Windows update may be installing something that is hosing your wireless NIC, since it seems to work before the Windows updates. Have you tried removing or uninstalling the Windows updates for testing?

If by removing the updates the problem is fixed you can try adding them back one at a time to isolate which one might be causing the problem. Though this could take some time it would be required in order to isolate the problem. Acer really doesn't have any Windows 8 specific drivers for your Acer notebook.

Windows Update - Uninstall an Update - Windows 7 Help Forums
 

My Computer

System One

  • OS
    Windows 8.1 Pro WMC
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built
    CPU
    Q9650 @ 4.05 GHz
    Motherboard
    Gforce 780i SLI FTW
    Memory
    8GB Gskill DDR2 1200Mhz
    Graphics Card(s)
    GTX-480
    Sound Card
    Asus D2 Xonar
    Monitor(s) Displays
    HannsG
    Screen Resolution
    1680x1050
    Hard Drives
    Gskill 120GB SSD
    PSU
    Thermal Take 1000watts
    Case
    Thermal Take Xtreme
    Cooling
    9 fans air cooled
    Keyboard
    G15 logitech
    Mouse
    G9 logitech
    Internet Speed
    50mbps
Yes DISM repaired something successfully.

I uninstalled all the windows updates and am running an sfc scannow.

If it does not work then I have no choice but to revert back to 8
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
I reverted back to windows 8 using the system image.

Will wait for the official release and then will try it for the last time.
 

My Computer

System One

  • OS
    Windows 8.1 professional x64 + WMC
    System Manufacturer/Model
    Acer Aspire 5920
    CPU
    Core 2 duo T5550
    Motherboard
    ACER CHAPALA
    Memory
    4GB DDR2
    Graphics Card(s)
    Intel GMA X3100
    Screen Resolution
    1280 X 800
    Hard Drives
    160 GB HDD
My Lenovo Yoga 2 Pro had the same problem with the Wireless adapter not being detected. The fix in my case was to disable the wireless adapter in the BIOS, restart the system, shutdown again, enable the wireless in the BIOS, and reboot again.
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
Help - did not work!!!!

I did not upgrade. It is a new computer, only 4 months old... came with 8.1 already installed. Today my network adapter stopped working. computer will find it. I fallowed all the steps here and it ran errors all the way thru. Would not clean the errors up no matter what I did. What else do I need to do to fix this problem. Trying not to do a restore or refresh as I do not want to lose several apps/programs.
 

My Computer

System One

  • OS
    windows 8.1
Do you get an error message or anything? Does the adapter show up in Device Manager?

If the computer is only 4 months old it may still be under warranty. If so, contact tech support.
 

My Computer

System One

  • OS
    W10 Pro (desktop), W10 (laptop), W10 Pro (tablet)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home built i7-8700K, Hp Envy x360 EVO Laptop, MS Surface Pro 7
    CPU
    3.7Ghz Core i7-8700K, 11th Gen Core i7-1165G7 4.7Ghz, 10th Gen Core™ i5-1035G4 1.1Ghz
    Motherboard
    ASUS TUF Z370-Pro Gaming, HP, MS
    Memory
    16G, 8G, 8G
    Graphics Card(s)
    AMD Radeon RX580, Intel Iris X Graphics, Intel Iris Plus Graphics G4
    Sound Card
    ATI High Definition Audio (Built-in to mobo)
    Monitor(s) Displays
    Dual Samsung U32J59 32 inch monitors, 13.3" display, 12.3" display
    Screen Resolution
    3840x2160 (Desktop), 1920x1080 (laptop), 2736x1824 Pro 7
    Hard Drives
    500GB ssd boot drive with 2 & 10TB Data (Desktop), 512GB ssd (laptop), 128GB SSD (tablet)
    PSU
    Corsair CX 750M
    Case
    Antec 100
    Cooling
    Coolermaster CM 212+
    Keyboard
    IBM Model M - used continuously since 1986
    Mouse
    Microsoft IntelliMouse
    Internet Speed
    665Mbps/15Mbps down/up
    Browser
    FireFox, MS Edge
    Antivirus
    Defender on all
    Other Info
    Retired in 2015 after working in the tech industry for 41 years. First 10 years as a Technician, the rest as a programmer/software engineer. After 1 year of retirement, I was bored so went back to work as a Robotic Process Automation Consultant. Retired for 3rd (and final) time in 2019.
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