Steps to Troubleshoot “No Internet” on a Desktop

1. Check Physical Connections

• Ensure the Ethernet cable is securely plugged into both the computer and the router/modem.

• If using Wi-Fi, confirm the Wi-Fi adapter is enabled and connected.

2. Restart the Computer

• A simple reboot can resolve many connectivity issues by refreshing the system’s network settings.

3. Reboot the Modem and Router

• Unplug both the modem and router, wait 30 seconds, then plug them back in.

• Wait a few minutes for them to fully power on.

4. Verify Network Status

• Wired Connection: Check if the network icon (bottom-right) shows a red “X” or yellow warning.

• Wireless: See if the Wi-Fi icon shows connected but “No Internet.”

5. Run Windows Network Troubleshooter

• Go to:
  Settings > Network & Internet > Status > Network Troubleshooter

• Follow on-screen prompts to detect and fix issues automatically.

6. Check IP Address Configuration

• Open Command Prompt and type:
  ipconfig

• Look for:

  • A valid IPv4 address (e.g., 192.168.x.x)

  • If the IP is 169.254.x.x, your PC didn’t receive an IP from the router.

7. Release & Renew IP Address

• In Command Prompt, type:

  bash
  CopyEdit
  ipconfig /release ipconfig /renew
  

• This forces your system to request a new IP address.

8. Flush DNS Cache

• In Command Prompt, type:

  bash
  CopyEdit
  ipconfig /flushdns
  

• This clears outdated domain data that could be causing issues.

9. Disable & Re-enable Network Adapter

• Go to:
  Control Panel > Network and Sharing Center > Change Adapter Settings

• Right-click the connection > Disable, then Enable after a few seconds.

10. Test on Another Device

• If other devices also have no internet, the issue is likely with the router or ISP.

• If other devices work fine, the issue is isolated to the desktop.