Incoming WAN cable split off onto a switch for set top boxes?

[tzube114]

I want to hard wire my other set top box that is using one of those Ruckus mediaflex adapters to send the signal wirelessly.

However, I am trying to figure out what my ISP did with my internet and TV connection. It looks like he took the incoming ethernet cable from the attic and split it off into two places. The green and orange wires going to the WAN port for my router/modem, and the others splitting off to a switch which he has my set top boxes running off of. Since he took the TV signal away from the router, I can't use powerline networking for the set top boxes that I have setup already. Should I just run a cable all the way from my "set top box switch" to the TV? Or would it be possible for me to cancel out the switch, execute the entire ethernet cable coming from the attic into the WAN port, and using powerline from the router?

The ISP is using IPTV, I have a ADSL2+ router/modem.

 

[Alabalcho]

That cable which comes from the attic - what it connects to in the attic?
Your installer did a poor decision to split that cable...

 

[tzube114]

That cable which comes from the attic - what it connects to in the attic?
Your installer did a poor decision to split that cable...

The cable ends up in the attic and out the side of my house inside of a box. They ran for fiber in my yard so I believe that they converted to ethernet inside the box and sent it inside the house. Looks like there are two blue ethernets heading inside. The box has tamper proof bolts on it or else I would try and open it up.