Using a MoCA network Adapter.

cdrabun89

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May 13, 2016
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I'm trying to find a way to Bring a hardline connection into my computer room. Where xfinity installed my internet modem is in my living room, a good 40 ft from where my two computers are located mine and my wifes gaming rigs.)

I've inquired with xfinity and they say i CAN add a modem to my account using a splitter, but I would only be able to use one at a time(the truth of that i'm not sure about due to third world tech support, improper english and all.)

Another options appear to be using a MoCA adapter of some sort. However until about 20 minutes ago I've never even heard of MoCA.

And the third option(most work involved, however cheapest) I basically run about 100' of ethernet cable through my crawlspace above my ceiling to a network adapter and hook up the computers.

My question is, of option 2 and 3, which would be more beneficial? and if its the MoCA, how does one wire that up?

There is a splitter already installed to my line right outside of the room the computers are in just before it goes under my house. If that helps making the decision.
 
Solution
xfinity hub ethernet > power line

2x powerline > 1 to each PC.

or

ethernet > switch > cat5e to PC's as you suggest.

Not sure why this is complicated? Am i missing somthing?
I'm not savy to networking, only building PCs, which i've only gotten into over the last 2 years. Still trying to figure out which would get solid connection without sacrificing much if any speeds. My wifi gets full speed HOWEVER for some reason sometime it will, for a split second lose connection, enough to sever connection to any servers I'm gaming on or using teamspeak.
 
It really comes down to how dangerous and time-consuming running cable through your crawlspace would be.

Bonded MoCA 2.0 (the latest standard available in production equipment) would support 1 Gbps, and since Comcast's approved modems all have interfaces no higher than 1 Gbps (excluding their fiber-based "Gigabit Pro," which uses a Carrier Ethernet switch), that's all you'd need. You can google "Yitong Bonded MoCA 2.0 Gigabit Ethernet over Coax Adapter" to find some low-cost options. Since you'd create a point-to-point circuit, you'd need two adapters, in the $130 price range.

100 feet of Cat-6 Ethernet cable would do the same thing, passively (without the need for additional electricity). You'd need to make sure you're getting pure copper rather than copper-clad aluminum to avoid creating a fire hazard. Ideally, you'd get a pre-crimped cable with a low-smoke, CMP plenum-rated jacket. That's going to cost around $50-$80 (google "100Ft Cat6 Plenum Ethernet Cable 550 MHz" or "Cat6 Gigabit Plenum-Rated Snagless"). Or you could get a cheap cable if you don't mind it not passing fire/building codes. And you'd likely want steel fish cable and some other goodies to keep the cable from snagging midway through the crawl space. When I fish cable through crawl spaces, I use a reel of steel fish tape and 12" PVC conduit to guide the cable through, assuming the crawl space is a flat, straight run. That's another $30 or so before trying to put a price on my blood, sweat and tears.

Adding a second modem wouldn't make sense to anyone but Comcast (since they'd double their revenue stream from you).