Intermittent MOCA Problems

[degrub]

Got it. I meant to say my attic TV antenna is on completely separate coax from the MOCA.

They can share if you get MOCA modems with a diplexer output (second coax connector). Otherwise, you can convert to ethernet by using a HDHomeRun tuner as close as possible to the antenna, but in conditioned air space. Also, install a LTE filter on the antenna if you haven't already or it wasn't included on the antenna amp.

 

[krkaufman]

They can share if you get MOCA modems with a diplexer output (second coax connector).

Not sure what this means. Such MoCA adapters are a convenience, rather than a requirement.

 

[degrub]

Yes. And they were common on the MOCA1 and 2 modems. Not so much now. Using the satellite diplexer is functionally equivalent and one i had not thought of since no experience with sat.

 

[nrgiii2]

They can share if you get MOCA modems with a diplexer output (second coax connector). Otherwise, you can convert to ethernet by using a HDHomeRun tuner as close as possible to the antenna, but in conditioned air space. Also, install a LTE filter on the antenna if you haven't already or it wasn't included on the antenna amp.

I have an LTE filter on the OTA antenna. I was trying to address reception problems on 1 OTA station (Fox) but it had no effect. The problem is more likely the crappy built-in tuner in my Roku TV.

 

[nrgiii2]

Except they’re not; the 6-way isn’t a model I’d consider designed for MoCA. Based on the attached diagram, I’d consider shifting to a 2-way plus 4-way splitter configuration, instead (ex: Antronix MMC1002H-B + MMC1004H-B), with a 70+ dB “PoE” MoCA filter installed directly on the 2-way’s input port to maximize the reflective benefit. The top-level 2-way would connect to the modem location and the secondary 4-way splitter.

The Picolink splitter should be fine, given it shipped with your adapters, but it would be worthwhile ordering a replacement for it, as well, as a precaution. (Order from somewhere with a good return policy.)

Separately, you could take a pair of MoCA adapters and connect them at each end of a given in-wall run to check the MoCA stats (get the PHY rates) for each coax line, to see if any of the runs demonstrate inferior quality. If so, open the wallplates and check the termination quality for the cabling; you can test with the wall outlets bypassed, as well, to rule out a coax outlet as the issue source.

p.s. The PHY rates table shown does seem to indicate an issue with MoCA adapter #1, with the rates in the vertical column associated with adapter 1 all showing well below the preferable 3500-3600 range. Pretty odd for the diagonal “GCD” rates to be so low, as well; these are typical vs Lou in the 600-700 range.

I don't understand the PHY Rates screen I posted. Is the adapter I'm looking at '0' in the diagram? How can I tell which adapters correspond to which numbers on the diagram? I know the IP address of each but the diagram doesn't show them. A link or brief tutorial would be most welcome!

nrg

 

[degrub]

power off all but the 1 pair to figure out which path is the issue. i think the number order is based on sequential power on.

 

[krkaufman]

How can I tell which adapters correspond to which numbers on the diagram?

I don’t know. I haven’t seen any page that provides this detail, so the only thing possible might be if mousehover over one of the table indexes offers info … but I doubt it. Just seems an oversight, like not including more details regarding RX/TX power levels for each link.