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Troubleshooting D-Link DI-624 or DI-604 router issues Figure depicting the lights on the front panel of the D-Link DI-624 router
You can use the lights on the front panel of your D-Link DI-624 router to help diagnose home networking connectivity problems. Follow the steps below to diagnose and test the possible solutions for any connectivity problems you are experiencing.

Note: You might want to print these directions to make the troubleshooting process easier. Download the complete instructions for easy printing.
  1. Is the Power light illuminated?
    • Light is green: The D-Link router power is on. Go to Step 2.
    • Light is not solid green: The router isn't getting power. Ensure the router is plugged in to wall outlet
  2. Is the WAN light illuminated?
  3. If the D-Link router is connected to your computer using an Ethernet cable, are any Local Network lights illuminated (E1, E2, E3, or E4)?
  4. If your computer uses a wireless network adapter to connect to the network, is the WLAN light illuminated?
  5. Reboot your computer by turning it off, waiting for 45 seconds, and then turning it back on. Re-check your router lights.

  6. Disconnect all networked computers and restart the computer connected to the router. Reconnect the other computers one-by-one to isolate the problem.

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