Trouble with MOCA Set Up

[cotorassiel]

Hello, I need some assistance with a MOCA set up that im trying to get up and running, my ISP is frontier with 1Gig fiber service, they have set up a MOCA adapter with an FCA251 configured on the WAN setting and works normally, I tried to set up a MOCA LAN network to no avail, MOCA light does not come on on neither GoCoax adapter, I have confirmed that the splitter I have in place is over 1000 Mhz (Its actually a 5-2000 Mhz), I have done a straight connection with both gocoax adapters and the MOCA light did come on. I dont know if I am doing something wrong or if there is a splitter somewhere in the attic preventing the MOCA connection and if that would be the case why is that the FCA251 is able to stablish a MOCA connection with the ONT on WAN setting?

Thank you in advance

 

[degrub]

Do read through the posts from Krkaufman regarding Frontier devices.

@krkaufman ?
Frontier is your specialty, IMHO.

 

[krkaufman]

frontier with 1Gig fiber service, they have set up a MOCA adapter with an FCA251 configured on the WAN setting

Why a FCA251 set to "WAN"? Do you also have TV signals on your coax?

The issue is likely due to the operating frequency associated with the FCA251["WAN"] setting overlapping with the standard MoCA Extended Band D range that the retail goCoax adapters are trying to use.

• FCA251["WAN"]: 1475-1675 MHz
• MoCA Ext. Band D: 1125-1675 MHz

What *should* have been done, absent TV signals on the coax, was to use an FCA252 adapter set to "25GW" ... either in coordination w/ an ONT natively supporting the associated operating frequency, or using a pair of the FCA252 adapters, with one installed at the ONT to proxy the MoCA WAN link. The critical bit is that the FCA252["25GW"] setting shifts the MoCA WAN to a frequency range NOT overlapping w/ MoCA's Extended Band D:

• FCA252["25GW"]: 400-900 MHz
• MoCA Ext. Band D: 1125-1675 MHz

The resulting setup, along with the MoCA LAN connections, might look something like the following...

​

​

You should contact Frontier to get you setup properly, since they may need to reconfigure the ONT to support the alternate MoCA WAN frequency, along with getting the FCA252 adapter(s) without charge.

p.s. More Re: the Frontier FCA252 adapter >here<.

---------------

Frontier is your specialty, IMHO.

Meh, few others seemingly jumping to respond to these setups doesn't really make them my specialty as much as a void of interest or knowledge on the part of others. There really isn't much to this Frontier workaround, and it's definitely well documented at this point.

 

[krkaufman]

p.s. One similar, past thread >here<.

 

[krkaufman]

I have confirmed that the splitter I have in place is over 1000 Mhz (Its actually a 5-2000 Mhz)

FWIW, this likely isn’t a splitter optimized for MoCA. See the following:

• MoCA-compatible splitter recommendations(… and warnings)
• preferred MoCA filter: PPC GLP-1G70CWWS (Amazon US listing) … 70+ dB stop-band attenuation, spec’d for full MoCA Ext. Band D range, 1125-1675 MHz

 

[cotorassiel]

Why a FCA251 set to "WAN"? Do you also have TV signals on your coax?

No TV signals at all on the Coax, I tried to link both GoCoax adapters and disconnecting the FCA251 still no connection, next test I will do is disconnect the ONT and the FCA251 from the Coax and try to isolate the network and see if the GoCoax adapters stablish a connection, if not im at a loss.

The ONT is a Frontier FOX222

Will Report Back when test have been completed

Thank You

 

[degrub]

After your test removing the ONT and the FCA251 with the splitter presumably installed, remove the splitter and use a barrel connector with a frequency rating that covers the moca range. Satellite or TV rated may or may not work. IF that doesn't work, test each coax segment with the two GoCoax adapters to verify.

Is the coax RG6 or RG59 ?
Roughly , how long is each segment ?

 

[krkaufman]

I tried to link both GoCoax adapters and disconnecting the FCA251 still no connection

You *will* need to get the coax lines identified and properly interconnected. You *could* use the pair of goCoax adapters for coax line identification, as described >here<, including getting the line to the router location identified when you could accept a temporary Internet outage (with the FCA251 disconnected).

edit:

test each coax segment with the two GoCoax adapters to verify.

Yes, basically this.

And then get the lines interconnected, ideally using MoCA-optimized components and optionally (though recommended) with a “PoE” MoCA filter on the top-level splitter’s input port, through which the ONT’s coax feed would be connected.

And you’ll still need to make the FCA251[“WAN”] >>> FCA252[“25GW”] MoCA WAN change.

NOTE: The “PoE” MoCA filter can only be added AFTER the upgrade to a FCA252[“25GW”] MoCA WAN setup, as the filter would block the frequencies associated with a FCA251[“WAN”] MoCA WAN connection.​

Related:

• MoCA-compatible splitter recommendations (… and warnings)
• preferred MoCA filter: PPC GLP-1G70CWWS (Amazon US listing) … 70+ dB stop-band attenuation, spec’d for full MoCA Ext. Band D range, 1125-1675 MHz

 

[krkaufman]

No TV signals at all on the Coax.

Call Frontier to schedule a tech visit to switch you to a FCA252[“25GW”] MoCA WAN setup. (The tech should also be able to help with getting the lines properly interconnected at your coax junction, using MoCA-compatible parts … though they’ll probably skip the recommended “PoE” MoCA filter.)

As detailed in that prior thread linked, the issue (aside from possibly disconnected coax) is that the FCA251 adapter doesn’t offer an operating range that doesn’t overlap with the MoCA Extended Band D range, making sharing coax between a FCA251-effected MoCA WAN and a MoCA LAN network problematic.

FCA251/WF-803FT configuration settings:

• WAN: 1475-1675 MHz (1000 Mbps max)
• LAN: 1025-1350 MHz (1500 Mbps max)
• FULL: 1125-1675 MHz (2500 Mbps max)