Welcome to Comcast Help & Support Forums
Find solutions, share knowledge, and get answers from customers and experts

New to the Community? Start here.




online now



Model No. DC50X

Posted by
  • The Community would like to Welcome you!
  • Congratulations on receiving your first Kudos! Thank you for your meaningful contribution to the forum. May this be the first of many kudos.

Member Since: ‎08-12-2011
Posts: 1
Message 3 of 3 (1,907 Views)

Model No. DC50X

This unit Part No. B3748416000 is not working. I have tried it on two tvs. It worked when first installed but no longer. What can I do?
Posted by
Member Since: ‎10-16-2008
Posts: 2
Message 1 of 3 (1,859 Views)

Re: Model No. DC50X

I just had two of these boxes stop connecting to the cable. One slightly after the other. I checked all the input cabling and have tried connecting the box where the working internet modem and the working TV tap out their signal. So far no luck. I thought at first it was low or lost signal, but it is appearing to be a problem with the comcast interface. Any ideas? I noticed there is a new digital box replacing this one. Has the protocol changed?

Posted by
Cable Expert

Member Since: ‎12-31-2004
Posts: 10,676
Message 2 of 3 (1,906 Views)

Re: Model No. DC50X

Call 1-800-COMCAST or take the box to the Comcast office for a replacement.