I want to add a second modem/router on my existing home network to get wifi and a wired TV connection to a detached building. I have buried conduit and can run Cat6/Coaxial from the detached building to the house to terminate at the ONT (Alcatel-Lucent) or the existing router location. It will be much easier to run cable to the ONT rather than the existing router (would need to add a wall plate and extra visible wiring). It appears the ONT can only directly supply to one router but can I add a switch right after the ONT and run one port to the existing wall plate the router connects to and a second directly to the detached building (about 100' of cable).
Also is there any reason to run both Cat6 and Coaxial or should i just run the ethernet?
If you need Optik TV service at the other location then it needs to be on the same network (router) as the PVR (assuming you have a PVR). Do you need access to other network devices like a network printer or a NAS from the remote building? If so then that's another reason to be on the same network.
Yes, I will need Optik TV in the detached building so I will need to be on the same network. I was under the impression I can use a second router to function as an extender. It sounds like you are suggesting it would have to be connected to the main router and not a switch. Would the TV need to connect directly to the PVR?