Appendix B: Troubleshooting - TP-Link TC-7620 User Manual

Appendix B: Troubleshooting

T1. What can I do if I cannot access the Internet?
1) Make sure that all cables are connected properly and securely to the modem.
2) Contact your ISP to verify the modem is activated. If the modem is not activated, your ISP will
activate it for you.
3) Make sure that your computer is set to obtain an IP address automatically.
4) Power cycle the modem by unplugging the power adapter from the electrical outlet and
plugging it back in.
5) Reset the modem. Please refer to T4 for instruction.
6) Contact our Technical Support if the problem persists.
T2. What can I do if the login page of the modem's web interface does not
appear?
1) Check if the computer is set to a static for fixed IP address. If so, change the setting to obtain
an IP address automatically.
2) Make sure http://192.168.100.1 is correctly entered in the web browser.
3) Use another web browser.
4) Unplug and reconnect both ends of the Ethernet cable.
T3. How can I reset the password to the modem's web interface?
If you have changed the password and have forgotten it, refer to T4 to reset the modem. This will
reset the password back to admin.
T4. How do I restore the modem to its factory default settings?
With the modem powered on, press and hold the Reset button on the rear panel until all LEDs
turn on momentarily, then release the button.
T
TC-7620 DOCSIS 3.0 High Speed Cable Modem User Guide
18