Generic router / solid green
Router lights checklist
Power first, provider signal second, Internet or Online third, then Wi-Fi and Ethernet. This avoids chasing Wi-Fi when the service signal is down.
Short answer
What order should I check lights in?
Power first, provider signal second, Internet or Online third, then Wi-Fi and Ethernet. This avoids chasing Wi-Fi when the service signal is down.
When the model is unknown, read the LEDs by function first: power, service, wireless, local network, and pairing.
Safe order
Check in this order
- Confirm the matching label: power, online, Wi-Fi, or Ethernet.
- If internet is still down, test a wired device before changing Wi-Fi settings.
- Look for a second warning light that explains the real fault.
- Restart only if the solid light conflicts with no service.
Light labels
What the nearby label changes
Before a factory reset
A reset can erase Wi-Fi names, passwords, port forwarding, and provider activation state. Use it only after power, cable, outage, and startup checks do not explain the light.
When to call support
Call the provider when Online, Internet, Broadband, US/DS, or Optical never reaches a steady normal state after one clean restart and cable check.
When Wi-Fi settings matter
Change Wi-Fi settings only when service lights are healthy but phones, laptops, or smart devices cannot join the wireless network.