yesterday
Box refused to boot up. Created booting cycle with no completion.
Compared Box required amperage (1.0A) with Power Supply output. Its maximum (0.36A).
Found appropriate 12VDC 1.5A Power Supply.
Frustration solved.
I am all ready for the failure of my other Optik TelusTV21-T.
Time saved: Not communicating with a Bot, Sitting on Hold, Waiting for a Callback that never came....Precious!
yesterday
Yes, I have a back up power supply after finding this issue after the third TelusTC-21T arrived. The second tuner immediately worked with #3 power supply.