Windows 10: Network Problem after Windows Update

I updated to W10 21H1 and now I’m getting an APIPA address and getting “ERR_ADDRESS_UNREACHABLE” when I try to go to web pages.

:)

 

How to Dump Networking Parameters?


Had a customer with this problem, they had a brand new Dell Optiplex 3050, with Windows 10 1709, and Realtek Gbit Family of lan adapters (wired connection). After much troubleshooting (many suggestions listed in the course of this thread), it turned out the PC needed a bios update. Among the updates listed on the dell website for bios version 1.52 (I flashed it with the latest 1.92) was "Update RealtekLOM".

LOM is "lan on motherboard" and the Realtek has flashable firmware.

One step for others having this issue is to check their computer manufacturer's website for "Lom" firmware updates for the particular network adapter - whether integrated or an add-in.

 

Windows 10 Networking Issue: After Windows Reset I can connect to network but no internet

Thank you for the update. For us not to repeat the troubleshooting steps you've already performed, could you tell us the troubleshooting steps that you've already performed?

Also, we suggest trying to run the Network troubleshooter to help with your issue. To do that, follow the steps below:

• Type Network troubleshooter in the Cortana search box.
• Then select Identify and repair network problems.
• Follow the steps in the troubleshooter and see if it fixes the problem.

Get back to us and give us an update.

 

Network Adapter PROBLEM

Hi,

Thank you for posting in Microsoft Community.

First Verify if the WLAN service is started and set to automatic, if the WLAN service is stopped, I would suggest you to start the service and put it to automatic.

Step 1: Please follow the steps to
start the WLAN service.

• 
  Click on Start, type in services.msc
  and press Enter.
  
• 
  Select WLAN Autoconfig from the list, Right click
  properties.
  
• 
  Change the startup type to Automatic.
  
• 
  Click on Start button.
  
• 
  Click on Apply, Ok.
  

Restart the computer and verify if it works.

Also check if all the dependencies are also running. Try the steps to check Dependencies.

• 
  Right-click on WLAN Autoconfig and select Properties.
  
• 
  Click on Dependencies, you will find all the dependency services under box labeled this service depends on the following system components.
  

Step 2: Run an inbuilt Network troubleshooter.

• 
  Press Windows + X key and select
  Control Panel.
  
• 
  Type troubleshooting and select troubleshooting.
  
• 
  Click on view all on the left pane and select
  Network adapter.
  
• 
  Follow the on-screen steps and check.
  

I would also suggest you to check with the below link to check how to resolve wireless problems.

Refer:
Wired and wireless network problems

Keep us posted to help you better.