Cable Modem Troubleshooting: Terayon TJ715

Light patterns, images, manuals and more helpful info for the Terayon TJ715 cable modem –

Manufacturer: Terayon Model: TJ715
Modem Light Indicators

Off – Unit is not receiving power.
Solid – Unit is receiving power.


Off – No downstream signal or power off.
Flashing slowly – Downstream signal present, ranging in progress.
Flashing fast – Registration in progress.
Solid – Modem acquired and ready to transfer data.


Off – No carrier to/from PC is present or power is off.
Solid – Carrier to/from PC is present.

Off – No data is being transmitted or power is off.
Flashing – Data is being transmitted.


Off – Initial self-test OK or power is off.
Flashing – Self-test or software download in progress.
Solid – Self-test failure.

Notes and Useful Information:

Installation and User Manual

Manufacturer Product Website (gone)

7 thoughts on “Cable Modem Troubleshooting: Terayon TJ715”

  1. Pingback: Simplehelp » Cable Modem Index

  2. walter schmaedecke

    i am interested in getting a manual for my modem. i need a manual S.S. ID , (wet key? 10 digit #) and my router default user name and password. I think my computer is getting hacked into and i need this info to secure my network. thanks walt

  3. How do I find WAP Password if I lost it for my Terayon TJ715x? I am using another computer since mine is in for repairs and to access my home wireless network it requires a WAP I do not know. Please answer me by telling me what I need to do, also giving me a telephone number where I could call for support with my cable modem. Thanks, I

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