help installing 2nd xfinity box

Hi i live in a condo, which as far as i know only has comcast as a supplier. I have had an x1 box in my living room for some time without a problem. I just bought a 2nd box to put into my bedroom, there is a cable wall outlet there, so i hooked it all up to my new box but i dont seem to get any signal at all. Does this need to be activated ? is it likely a completely different "line" ? Is this something that can be activated remotely or does a technician need to come look at it ?

thank you for any help.