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What to Do When Ethernet Is Not Working

Troubleshoot a wired network connection with no internet or no link.

Quick Answer

Check cable seating and link lights, try another cable/router port, then review the network adapter and IP configuration.

Step by Step

  1. Determine whether the problem affects one device or every device on the network.
  2. Check cable seating and link lights, try another cable/router port, then review the network adapter and IP configuration.
  3. Change one setting or component at a time and test again.
  4. Record existing router/network settings before changing passwords, DNS, addressing, or advanced configuration.

If That Doesn't Work

  • Router menus, indicator lights, and terminology vary by manufacturer and internet provider.
  • Avoid factory-resetting a modem/router unless you know how it is provisioned and have the information needed to restore the connection.