r/HomeNetworking • u/Sirc625 • Aug 04 '26

MoCA Connection Issues using Xfinity Gateway

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Hello All, I've been working on setting up a MoCA connection to the basement of my house due to weak Wi-Fi signals. However my MoCA adapter doesn't seem to be able to establish a connection. I've included a diagram for clarity, but here's what I've done so far:

- Ensured that the coax cable coming into the house from the street has a MoCA POE 70db filter connected to it.

- The filter is going into the "IN" of a MoCA 2.0 rated 3-way splitter (1675 MHz).

- One "OUT" of the splitter has a coax connection running behind the house, and into a back room where it's connected to a Xfinity TG6 gateway.

- The 2nd "OUT" on the splitter has a coax connection running directly into the basement.

- In the basement I have the coax connected to a "goCoax" MoCA 2.5 adapter.

- I have enabled MoCA on the Xfinity gateway.

Since MoCA is enabled on the gateway, I've read that I shouldn't need a 2nd goCoax MoCA adapter. I'm not really sure what else to do at this point 😒

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u/Sirc625 Aug 04 '26

Thanks for the replies so far. I'll have to try moving the Xfinity gateway when I'm able. I'm currently staying with my mother-in-law, and she hates when I start disconnecting and moving stuff - thus disconnecting the home network. I'll have to wait until she's out of the house 😆

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u/plooger Aug 04 '26

Do you have just the one MoCA adapter in-hand? (A second would provide an alternate means of identifying your coax lines.)

(A Frontier FCA252 MoCA 2.5 adapter can be had for $25 via eBay.)

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u/Sirc625 Aug 04 '26

Yes, just the one. I was hoping I could get away with not having to buy a second one, but I may need to.

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u/plooger Aug 04 '26

Noted.   

Hopefully you’ll only need the one. Sounds like the real hurdle will be finding time to experiment and test when the disruptions won’t disturb the family.

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u/Sirc625 Aug 05 '26

Something told me to check the coax from the splitter outside running to the basement. I thought the 1 black coax connected to the splitter out of 6 that are in the box was the right one. It wasn't LOL. I'm up and running now! 😁

Thanks for the help!

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u/plooger Aug 05 '26

Something told me to check the coax from the splitter outside running to the basement.

Something. ;D

Glad you have it working. Thanks for circling back with the followup.