Motorola does not sell these STBs or DVRs to consumers in the United States. They sell those boxes exclusively to cable companies.
If you purchased a DCT3416, then in all likelhood, you purchased a stolen box. Virtually all the boxes sold on ebay and craiglist are stolen. With rare exception, cable companies will not support or activate stolen equipment.
Without a subscription, these Motorola DCT boxes are basically doorstops. To function, they have to download the appropriate software from the cable company. If you aren't renting the box from the cable company, then it may not be able to download that software.
If you purchased a DCT3416, then in all likelhood, you purchased a stolen box. Virtually all the boxes sold on ebay and craiglist are stolen. With rare exception, cable companies will not support or activate stolen equipment.
Without a subscription, these Motorola DCT boxes are basically doorstops. To function, they have to download the appropriate software from the cable company. If you aren't renting the box from the cable company, then it may not be able to download that software.