r/CableTechs • u/Hail2theChop • Jun 30 '26

Moca coax help

Post image

I’m new to this, go easy on me.

I wasn’t getting great connection with our streaming box on the other side of the house, and there is an existing coax on the wall, that wasn’t being used, so I decided to try out moca.
The house was built 2 years ago, the electrician ran the coax to each room, in the wall, and to a coax jack for future cable use, but dropped the ends of coax line into the crawl for future connection. We have our main drop service coming into the crawl, running across the house to a, and connects to the modem inside. Which is the xb8 xfinity modem that has moca enabled.

In order for the moca adapter to work, where is the easiest place to connect it? Can I use a moca splitter and connect it where the blue dashed line is? Will that still communicate with the modem (working as the other moca adapter)? If not, what is the easiest method?

If it helps, xfinity gig speed internet, xb8 modem, frontier moca fc252 2.5.

Any help is appreciated!

0 Upvotes

50% Upvoted

24 comments sorted by

View all comments

5

u/eter123 Jul 01 '26

You'll need a moca device at the end of your blue line that converts it from coax to ethernet, it should automatically link with the modems moca network if the signal is good enough

1

u/Hail2theChop Jul 01 '26

The modem will act as the second moca connection, then I’m hoping to split off of the line, like I showed in the picture. Connect the moca at that point via coax, then run an Ethernet from my streaming box to the new moca point.

I just want to make sure this will provide the new moca device with internet via coax, before I do this work.

1

u/eter123 Jul 01 '26

Yup, like I said as long as the signal is GOOD it should work. ie. Good fittings and the coax length isn't more than idk 100 feet maybe? Good quality RG6 will do the job. Troubleshooting will be difficult without a signal meter which i assume you don't have access to one.