How to Fix Fix Ethernet Not Working on Windows on Windows
Ethernet cable plugged in but no internet? Wired connection not detected? Network adapter showing "Unidentified Network" or no connectivity? Fix Ethernet problems on Windows 10 and 11.
📖
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 cable plugged in but no internet access
- •Network adapter shows "Unidentified Network"
- •Ethernet icon shows a yellow triangle or red X
- •Wired connection drops intermittently
- •Ethernet adapter not appearing in Network Connections
- •Getting "No valid IP configuration" error for Ethernet
Common Causes
- ⚠Ethernet driver outdated or corrupted
- ⚠DHCP not assigning a valid IP address
- ⚠Network adapter disabled in Device Manager or Settings
- ⚠Faulty Ethernet cable or loose connection
- ⚠TCP/IP stack corrupted
- ⚠Router or switch port malfunction
Solutions
Solution 1: Reset Network Adapter
- 1Settings → Network & Internet → Advanced network settings
- 2Click "Network reset" at the bottom
- 3Click "Reset now" — this reinstalls all network adapters
- 4Your PC will restart automatically
- 5After restart: check if Ethernet is working
- 6If not: open CMD as Admin and run:
- 7ipconfig /release && ipconfig /renew
- 8netsh winsock reset
- 9Restart again after running these commands
Solution 2: Update or Reinstall Ethernet Driver
- 1Open Device Manager → Network adapters
- 2Find your Ethernet adapter (Realtek, Intel, Killer, etc.)
- 3Right-click → Update driver → Search automatically
- 4If that doesn't help: right-click → Uninstall device
- 5Check "Delete the driver software for this device"
- 6Restart Windows — it will reinstall the default driver
- 7For best results: download the latest driver from your motherboard or laptop manufacturer's website
- 8Install the downloaded driver and restart
Solution 3: Fix IP Configuration Issues
- 1Open CMD as Administrator
- 2Run: ipconfig /all
- 3Check if the Ethernet adapter has a valid IP (not 169.254.x.x)
- 4If you see 169.254.x.x — DHCP is not working:
- 5Try: netsh int ip reset
- 6Try: netsh winsock reset catalog
- 7Restart the computer
- 8If still failing: manually set a static IP:
- 9Settings → Network → Ethernet → IP assignment → Edit → Manual
- 10Set IP: 192.168.1.100, Subnet: 255.255.255.0, Gateway: 192.168.1.1
- 11DNS: 8.8.8.8 and 8.8.4.4
FIXES THIS IN 5 MINUTES
Fix Fix Ethernet Not Working on Windows Automatically
RescuePC Toolkit includes 109+ automated repairs that fix this problem with one click. No command line knowledge required.
Download Now - Free TrialNo credit card required • Works on Windows 10 & 11