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24 channel from 32? / day 8/ unstable xfinity internet / power 14.3 dBmV / SNR 36.5db
xfinity 400Mb service CM1000 V7.01.01 last 8 days internet drops for 10min to 1-2 hours 5-8 times a day. one coax line straight to my cm. Line levels checked at home show the bottom 3-4 cha...
You also have a lot of errors in the line. Check for bad/old/corroded connectors. Kinks or damage to the line.
going to a 24 channel modem isn't going to help and will potentially hurt as the docsis 3.1 modems enable extended upstream power levels and the ofdma channels can transmit more data
thank you for replying
% of errors is 0% after the last cm reboot. cable from tap to house was replaced yesterday.
739.75MHz down still has a low SNR compared to peers at 42db
can netgear adjust the channels it uses or put a range of channels or frequencies not to use?
is this in the works as an enhacement somehow?
with LTE and 5G cranking up post pandemic, it seems this will become more of an issue with interference with cable?
jms23 wrote:thank you for replying
% of errors is 0% after the last cm reboot. cable from tap to house was replaced yesterday.
739.75MHz down still has a low SNR compared to peers at 42db----its at 39. anything over 33 is within spec for snr.
can netgear adjust the channels it uses or put a range of channels or frequencies not to use?---No. its set by the isp
is this in the works as an enhacement somehow?---doubtful as the isp controls it
with LTE and 5G cranking up post pandemic, it seems this will become more of an issue with interference with cable?---per the prior comment, this is a load of bs. the towers might pull some bandwidth and if thats causing the issue, your isp needs another hub for the tower seperate from consumer connections
From that article
"The PML team found that, of the devices tested, nearly all set-top boxes and cable modems by themselves were able to handle 4G interference expected from typical cellular devices. But the cables, connectors, and signal splitters in a residential set-up can allow signals to leak into the signal path. Retail two-way splitters performed poorly, and half of the consumer-grade coaxial cable products tested failed – that is, had substantial signal errors – at or below the normal signal levels."
It later goes on to say:
"Meanwhile, Ladbury says, improved consumer education and understanding could help minimize problems. "When the cable company installs cable in your house, they typically do it the right way and use quality components. The problem is that, once they leave, you have the freedom to change things – get a new TV, add a line splitter, run new cable, and so forth. And many consumers don't have the knowledge to make the right decisions in those circumstances."
So get decent connectors and cables if you feel that's the issue. There are shielded rj6 cables and higher quality ends/connectors. If the ISP is saying thats the issue, they're responsible for the signal up to the home. In the home, its on you. I've been doing this a while and never seen an issue from cellular broadcasts when everything is ran proper.
You can find proof of anything if you google long enough.