How to Fix Ethernet Not Working on Windows
Wired ethernet connection not working on Windows? Fix LAN cable issues, "Unidentified Network" errors, and ethernet adapter problems.
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Main Troubleshooting Guide
How to Fix No Internet Connection →Complete symptoms, causes, and step-by-step solutions
Symptoms
You might be experiencing this problem if you notice:
- •Ethernet connected but no internet
- •"Unidentified Network" on wired connection
- •Ethernet adapter shows disconnected (red X)
- •Network icon shows globe instead of monitor
- •LAN works on other devices but not this PC
- •Ethernet was working but stopped after update
Common Causes
- ⚠Ethernet driver missing or corrupted
- ⚠DHCP not obtaining an IP address
- ⚠Ethernet adapter disabled in settings
- ⚠Faulty ethernet cable or port
- ⚠Static IP configuration conflict
- ⚠Network adapter power management turning it off
Solutions
Solution 1: Reset Network Adapter
- 1Open Network Connections (ncpa.cpl)
- 2Right-click your Ethernet adapter > Disable
- 3Wait 10 seconds
- 4Right-click again > Enable
- 5If adapter is missing, check Device Manager for hidden devices
Solution 2: Reinstall Ethernet Driver
- 1Open Device Manager
- 2Expand "Network adapters"
- 3Right-click your Ethernet adapter > Uninstall device
- 4Check "Attempt to remove the driver" if available
- 5Restart your computer
- 6Windows should reinstall the driver automatically
- 7If not, download from your motherboard/laptop manufacturer website
Solution 3: Release and Renew IP Address
- 1Open Command Prompt as Administrator
- 2Run: ipconfig /release
- 3Run: ipconfig /flushdns
- 4Run: netsh winsock reset
- 5Run: ipconfig /renew
- 6If you get a 169.254.x.x address, DHCP is not working — try a different cable or router port
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