Appendix A: FAQ

Here are answers to common issues and how to resolve them:

  1. Router not connecting to the internet?

    • Ensure the router is equipped with a functioning SIM card.

    • Verify data services are active and the SIM card is not suspended due to overdue charges.

    • Check if APN settings and other dial-up parameters are correctly configured.

    • Confirm the PC’s IP address is on the same subnet as the router.

  2. Experiencing packet loss when pinging the router?

    • Inspect the network cable to ensure it’s in good condition.

  3. Router settings forgotten after IP address change?

    • Connect via serial cable and use the console for configuration, or

    • Reset to factory settings using the Restore button shortly after powering on.

  4. Router frequently restarting?

    • Check the SIM card and data services.

    • Ensure the signal is strong and power supply is stable.

  5. Firmware upgrade failures?

    • For local upgrades, make sure the PC and router are on the same network.

    • For remote upgrades, ensure the router has internet access.

  6. VPN connection issues?

    • If the PC can connect to the server but not vice versa, disable the PC’s firewall.

    • For connection issues to the server, enable “Shared Connection” in the router’s WAN or Dialup settings.

  7. Power or Network LEDs not lighting up?

    • Check the router’s power supply and cable connections.

    • Ensure network cables are intact and properly connected.

  8. Cannot ping the router even though the Network LED is lit?

    • Verify that the PC’s IP and the router’s IP are in the same subnet.

  9. Web interface is inaccessible?

    • Confirm the PC’s IP is on the same subnet as the router.

    • Check the PC’s firewall settings and disable any conflicting browser plugins.

  10. Persistent dial-up failures?

    • Reset the router to factory settings and reconfigure.

These steps should help troubleshoot and resolve common issues with your TK500v3 Router. For persistent problems, consulting the user manual or technical support may be necessary.