You would also need your DOCSIS ISP to authorize that second cable modem, which may mean additional service fees. If you want another box that talks directly to your DOCSIS ISP over coax, you would need a DOCSIS cable modem, not a MoCA adapter. It’s a way to connect LAN devices in one part of your home to LAN devices in another part of your home, by way of cable TV coax you already have, to save the hassle of installing Ethernet cabling in the walls. How to you connect the CGN3 in order to use MoCA The modem has only one coax connection on the back, and that is being used for the incoming cable. It purposely only uses frequencies well above 1GHz, so that it can share the same coax cables in your home without interfering or interacting in any way with DOCSIS or cable TV channels. MoCA is a completely different technology for sending LAN traffic over coax. A cable modem is the device that connects to a DOCSIS ISP over coaxial cables, and then provides an Ethernet LAN port so you can connect your home LAN to the Internet via that DOCSIS ISP’s network. DOCSIS works by sending data over spare TV channel frequencies below about 1GHz. ![]() Is there any issues with two different networks using one Coaxial cable (performance, or otherwise)?Ĭable TV providers use a protocol called “DOCSIS” to provide internet service via their coaxial cable infrastructure. The only thing there is that I would need to convert the Coaxial to Ethernet, which seems possible to do through a MOCA adapter. I’m wondering if it’s possible to use a splitter on the existing Coaxial cable, having one end go to the modem (as is done currently), and have the other go to my access point to run a different wireless network. I’m also concerned about performance, and generally would like to skip the existing modem middleman. But, I’ve been running into problems with port forwarding, etc as the modem is not in bridge mode since there are other users of it. I’ve plugged this directly into the modem of the ISP and it works fine right now. I have a Unifi Dream Machine AP that I’d like to use. There are other tenants in building that use this same connection. It is currently hooked up to a modem provided by the ISP, which we connect to wirelessly. ![]() ![]() There’s a single coaxial cable that powers the internet connection. I recently moved into a new place (rental) and I’m wondering if the following is possible.
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