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 Using the Ethernet LAN lights to troubleshoot the Verizon 9100EM router An Ethernet light should be illuminated for each port (1-4) where you have an Ethernet cable connected. If you have an Ethernet cable plugged into a port that does not have its light illuminated, follow the steps below to diagnose the problem.

  1. Plug the yellow Ethernet cable into a different available Ethernet port in the back of the router.


  2. If the Ethernet light is still off, verify that you plugged the other end of the Ethernet cable securely into the Network Interface Card (NIC) in your computer.


  3. If the Ethernet light is still off, use Windows Device Manager to verify that your NIC is working correctly.


  4. If the Ethernet light is now illuminated but you still can't connect to the Internet, continue with Troubleshooting Step 5.


  5. If the Ethernet light remains off, contact the Verizon Fiber Solutions Center.

 


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