Using the Internet light to troubleshoot the Verizon 9100EM router
- Verify that your Ethernet cable connection to the Ethernet WAN port on the back panel of the router is secure. [Show Me]
- Check the connection where the Ethernet cable connects to your FiOS connection.
- If the Internet light still isn't illuminated, there may be a service outage in your area.
- If the Internet isn't illuminated and there is no service outage, continue with Troubleshooting Step 4.
- If the Internet light still isn't illuminated, please contact Verizon Fiber Solutions Center.

