Windows 10: High CPU usage when network connection status is changed network cable is plugged-in or...

Dear All,I have a problem when the network cable is plugged-in or removed-out from the LAN port. The problem is that when the network cable is plugged-in or removed-out from the LAN port, the windows defender firewall service causes my 4 core CPU to be loaded 25%+ for about 1 minute or more single core load. I have tried to reset all network configuration, firewall rules and any other solution with no luck. The problem occurs even when the firewall is disabled no control of in/out traffic. I have been trying to pinpoint the cause of the problem and I have concluded these temporary workaro

:)

 

Losing network connection

Hello Dear, if you have a laptop or a PC with a wireless network adapter, you can see a list of available wireless networks and then connect to one of those networks. The wireless networks will only appear if your PC has a wireless network adapter installed, the adapter is turned on, and the wireless access point is in range.

1. Click Start, click Control Panel, click Network and Internet Connections, and then click Network Connections.

2. In the left pane, under Network Tasks, click View available wireless networks.
In case, If you don't see the network you want to connect to, click Refresh network list. If you see the network but the signal is weak, move the PC closer to the wireless router.

3. Click the network you want to connect to, and then click Connect.

4. If you're connecting to a secure network, type the security key, and then click OK.

I Hope you solve out your query soon.

 

A network cable is not properly plugged in or may be broken

Hi,

As you have mentioned, the network cable is working fine with other system. The issue might be due to the outdated drivers or due to the incompatible drivers.

I suggest you to follow the steps below to update the drivers and check if it helps.

• 
  Type Device Manager in the search bar, and select
  Device Manager from the list.
  
• 
  In Device Manager, expand Network adapters
  option.
  
• 
  Right click on the network adapter name and click on
  Update Driver Software.
  
• 
  Follow the on-screen instructions.
  
• 
  Restart the system after update is done.
  

Hope the information helps. Kindly write back to us with the updated status of the issue for further assistance on Windows. We will be glad to assist you.

Thank you.

 

Network Status Not Connected

Hi,



Thank you for writing to Microsoft Community Forums.



I would suggest you to try the steps provided in article:
Fix network connection issues in Windows. Also check if the proxy settings are
disabled. To check the proxy settings:

1. Open Windows Settings (Windows key + I)
   
2. Then click on Network & Internet > Proxy.
   
3. Toggle the option Automatically detect settings to ON.
   
4. Toggle the option Use a proxy server to OFF.
   

Hope it helps.