Windows 10: Ethernet or WiFi not working after BIOS update in Windows 11

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It is necessary to install a BIOS update when it is available because it increases hardware compatibility and system stability. However, some users experienced issues with the internet after installing the BIOS update. If the Ethernet or WiFi is not working after a BIOS update in Windows 11/10, the solutions provided in this article will […]

This article Ethernet or WiFi not working after BIOS update in Windows 11 first appeared on TheWindowsClub.com.

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WIFI Works, Ethernet won't

OK but why?

NOT YELLING, JUST EMPHASIZING

Please note, I installed the new Lynksis, it worked just fine for 3-4 days on both my MACBOOK PRO when in ethernet connect and the Dell, then the ethernet just quit working for both my MacBook Pro and Dell desktop. It did work, then just quit for no apparent reason. WIFi for iPhone, iPad, Andriod Phone, and when I set to wifi for my MacBook pro all work fine.

Detailed history: I first noticed that on my Desktop dell that is CAT5 ethernet connected to the WIFI ROuter, that it stopped, no internet access. I began to trouble shoot, and turned off my WIFI on my MAcbook and it wouldnt work either, plugged into same router but different cat5 cable. At that time, all WIFI devices still worked. I figured that it must be the ethernet side of the WIFI router, so I replaced the router with brand new one. the Lynksys N900 listed in original thread. Ethernet and everything worked just fine for 3-4 days. But then ethernet quit, but wifi still works.

Whatever the problem, it affects both my MacBook Pro and Dell with WIN 7. I'm guessing it is NOT a computer problem, if it is it is affecting both my Mac and Dell, separate cat 5 cables to same wifi router

To remixedcat, I don't know for sure how to check IP settings, see above post, no damage apparent to anything.

 

Windows 11 ethernet keeps disconnecting.

My ethernet keeps disconnecting randomly, especially after heavy usage on Windows 11 Pro. It usually stays disconnected until restart.

My components:

• MSI B550 Tomahawk
  
• Ryzen 7 3700x
  
• GTX 1080 TI
  
• DA850 Gold Silverstone – power supply
  
• Patriot Viper 4 Series DDR4 32GB (2x 16GB) 3200MT (PV432G320C6K)
  
• P5 M.2 SSD
  

What have I tried:

• Changed ethernet cable to new one. – I have tried both ethernet ports on MOBO
  
• Reset modem settings and restart modem.
  
• Almost all software tweaks that I have found online – multiple settings (reset network….etc.).
  
• Upgrade network drivers
  
• Completely fresh reinstall Windows 11
  
• Change power supply and SSD drive.
  
• Update BIOS to the latest version.
  

I'm currently considering that the problem might be related to Windows 11 itself, given that my other computer that runs on Windows 10 doesn't encounter the same issues. It could also be an issue with the modem itself or a possible hardware malfunction. Interestingly, when I utilize an external WiFi dongle, the WiFi connection seems to work flawlessly. I'm open to suggestions for potential solutions or fixes.

 

Only on Windows 11 with Lenovo USB-C dock Ethernet not working

Hello ,

Good to see you in Microsoft Community.

Firstly, could you let me know the specific system version (OS Build)? You can check it by pressing Win + X > System > Windows specifications, click “Copy” and paste it in your next reply.

You can follow the steps below:

1. I suggest that you check if the Ethernet adapter is enabled in the Device Manager. To do this, follow these steps:
   
   1. Press the Windows key + X and select Device Manager from the list.
      
   2. Expand the Network adapters section.
      
   3. Look for the Ethernet adapter and check if it is enabled. If it is disabled, right-click on it and select Enable device.
      
2. If the Ethernet adapter is already enabled, try updating the driver for the Ethernet adapter. To do this, follow these steps:
   
   1. Press the Windows key + X and select Device Manager from the list.
      
   2. Expand the Network adapters section.
      
   3. Right-click on the Ethernet adapter and select Update driver.
      
   4. Select Search automatically for updated driver software and follow the on-screen instructions.
      
3. If updating the driver does not resolve the issue, try uninstalling and reinstalling the Ethernet adapter driver. To do this, follow these steps:
   
   1. Press the Windows key + X and select Device Manager from the list.
      
   2. Expand the Network adapters section.
      
   3. Right-click on the Ethernet adapter and select Uninstall device.
      
   4. Restart your computer.
      
   5. Windows will automatically reinstall the driver for the Ethernet adapter.
      
4. If none of the above steps work, you can try resetting the network settings on your Windows 11 computer. To do this, follow these steps:
   
   1. Press the Windows key + I to open Settings.
      
   2. Click on Network & internet.
      
   3. Scroll down and click on Network reset.
      
   4. Click on Reset now and follow the on-screen instructions.
      

If anything is unclear, please do not hesitate to let me know.

Best Regards,

| Microsoft Community Support Specialist