11-24-2023 12:10 AM - last edited on 11-24-2023 08:18 AM by RogersJo
Hello All,
I apologize in advance if this has been answered before (I have gone through a ton of posts here and other forums) but had questions that I'd be grateful if answered for complete understanding.
I just moved to a townhouse and unfortunately the previous owners cut most of the co-ax cables leaving me with only 2 available ports (1 in the basement (next to the garage which is the PoE for the ISP), and 1 on the second floor room.
I am looking to have the XB7 in the basement and have a router in the room to have better Wi-Fi on the top floor.
Current scenario:
Garage: incoming line --> 2 way splitter (1 to basement, 1 to bedroom [currently disconnected])
Basement: coax --> XB7 (bridge mode) -- 2 x ethernet from XB7 -- Wi-Fi AP & work station
Required scenario:
Incoming line --> PoE filter ? --> MoCA compatible splitter -->
Basement: coax --> XB7 (MoCA enable) -- ethernet -- work station
Bedroom: coax --> MoCA adapter (ECB7250S02 or MA2500D) --> ethernet --> Wi-Fi AP
Questions:
**Labels Added**
08-01-2024 10:21 PM
Here's the data. Took me a while to figure out but on a Mac, you need to hold command key also along with shift to properly copy.
I'll work this weekend to rejig the entire network. It takes a while to get everything back online but changing everything might be a good start as well. I'll keep looking for the same MoCA adapter and add that if Rogers isn't able to help figure the settings stuff out.
Do you know if the XB8 has any improvement on the XB7 or is it even more locked out?
IndexLock StatusFrequencySNRPower LevelModulation
Downstream | Channel Bonding Value | |||||||||||||||||||||||||||||||
16 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked | Locked |
651 MHz | 279 MHz | 849 MHz | 855 MHz | 861 MHz | 579 MHz | 585 MHz | 591 MHz | 597 MHz | 603 MHz | 609 MHz | 615 MHz | 621 MHz | 633 MHz | 639 MHz | 645 MHz | 657 MHz | 663 MHz | 669 MHz | 675 MHz | 681 MHz | 687 MHz | 693 MHz | 699 MHz | 705 MHz | 711 MHz | 717 MHz | 723 MHz | 825 MHz | 831 MHz | 837 MHz | 843 MHz | 350000000 |
41.3 dB | 41.7 dB | 42.9 dB | 43.1 dB | 42.8 dB | 41.4 dB | 41.8 dB | 42.2 dB | 41.9 dB | 41.7 dB | 41.6 dB | 41.2 dB | 41.5 dB | 42.1 dB | 41.7 dB | 41.4 dB | 41.3 dB | 41.4 dB | 41.8 dB | 41.5 dB | 42.1 dB | 41.9 dB | 41.9 dB | 41.9 dB | 42.1 dB | 42.5 dB | 42.7 dB | 42.6 dB | 43.0 dB | 42.9 dB | 42.7 dB | 42.6 dB | 41.1 dB |
-1.4 dBmV | -2.2 dBmV | 1.3 dBmV | 1.5 dBmV | 1.3 dBmV | -2.4 dBmV | -1.9 dBmV | -1.3 dBmV | -1.5 dBmV | -1.7 dBmV | -2.0 dBmV | -1.9 dBmV | -1.7 dBmV | 0.9 dBmV | -1.0 dBmV | -1.2 dBmV | -1.5 dBmV | -1.1 dBmV | 0.6 dBmV | 0.5 dBmV | 0.5 dBmV | 0.4 dBmV | 0.6 dBmV | 0.6 dBmV | 0.2 dBmV | 0.1 dBmV | 0.2 dBmV | 0.0 dBmV | 1.0 dBmV | 1.0 dBmV | 0.8 dBmV | 0.7 dBmV | -1.5 dBmV |
256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | 256 QAM | OFDM |
IndexLock StatusFrequencySymbol RatePower LevelModulationChannel Type
Upstream | Channel Bonding Value | ||
1 | 2 | 3 | 4 |
Locked | Locked | Locked | Locked |
21 MHz | 25 MHz | 32 MHz | 38 MHz |
2560 | 5120 | 5120 | 5120 |
44.0 dBmV | 44.3 dBmV | 45.5 dBmV | 45.5 dBmV |
QAM | QAM | QAM | QAM |
TDMA_AND_ATDMA | ATDMA | ATDMA | ATDMA |
IndexUnerrored CodewordsCorrectable CodewordsUncorrectable Codewords
CM Error Codewords | ||||||||||||||||||||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
3238043779 | 1993256470 | 1993278455 | 1993275064 | 1993285591 | 1993297498 | 1993303314 | 1993317677 | 1993332605 | 1993345663 | 1993347144 | 1993347600 | 1993347753 | 1993343829 | 1993357951 | 1993366095 | 1993374538 | 1993389208 | 1993383746 | 1993390863 | 1993410723 | 1993413348 | 1993421099 | 1993382202 | 1993373832 | 1993365105 | 1993414479 | 1993449465 | 1993435374 | 1993454267 | 1993459968 | 1993484948 | 3238043779 |
2646800191 | 67 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14860 | 22661 | 28214 | 6771 | 0 | 418 | 0 | 0 | 0 | 2646800191 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16930 | 30678 | 39024 | 12515 | 0 | 508 | 0 | 0 | 0 | 0 |
08-01-2024 10:52 PM - edited 08-01-2024 11:39 PM
Ok, adding another 2 port MoCA splitter at the modems location will drop the OFDM signal range down to -5 to -6 dBmV. Thats the very bottom of the range that I would like to see. Ideally you would be at a higher signal range to start with, but, it is what it is. You have room on the upstream side for the signal levels to rise, so, that shouldn't be an issue. My main concern at this point is the Downstream signal levels.
So, at this point, its a try it and see. You could simply buy or order the 2 port MoCA splitter, install that and not worry about the MoCA adapter side of the splitter for now. The question at hand is whether or not the modem will have problems with the additional 3.5 dB drop in signal levels reaching the modem? Ideally the open side of the splitter would have a 75 ohm terminator installed to prevent any signal reflection, or, a connection to some 75 ohm input to a device that happens to be turned off. I wouldn't sweat the small stuff for now.
I don't think you have to change anything at this point, in terms of the physical configuration, other than adding the 2 port splitter as an experiment. One thing to consider is that it will drop the MoCA signal levels as well, so that might result in slower data rates over the MoCA network. That's another experimental issue to be determined.
I don't know if the XB8 has a MoCA Privacy code entry window, or, if Comcast has simply used the same user interface. I'll have to look around to see what I can find.
Just to note, you have some amount of uncorrectable errors in the 700 to 717 Mhz range. I'm wondering if thats due to cell phone signal ingress somewhere in the system? Don't know, just wondering at this point. The amount of uncorrectable codewords is small compared to the total number of codewords in that same range, so, I'm not really concerned with them at this point.
Food for thought, I'll have to read thru the entire thread, I'm wondering what cable you have that runs to the modem from the outside cable duct? And by that I mean is it RG-59 or RG-6. It should be RG-6 which is a larger cable with lower losses at higher frequencies. I might ask you to check the cable jacket for the manufacturers data. That would show what type of cable it is. If its old RG-59, it should be replaced with RG-6, which would hopefully bring up all of your downstream signal levels. That would help to counteract the addition of the 2 port MoCA splitter just ahead of the modem.
Just to confirm, you should have the following configuration for your cabling:
Inbound -> MoCA -> MoCA -> cable -> Modem -> ethernet -> devices
Rogers Point of Splitter -> cable -> MoCA Adapter upstairs -> router -> devices
Cable Entry -> cable -> MoCA Adapter -> devices
Filter -> cable -> MoCA Adapter -> devices