I have been experincing constant disconnects which seem to be getting more frequent and annoying. I am using a Netgear CM500 which is fairly new but experinced the same disconnects with my previous motorola surfboard modem. FInally had a tech come out today who said he dialed down the frequency level a little as it was high and should be fine. Disocnnects are still occuring several hours after and more frequent. A few weeks ago i disconnected the splitter and runnig the line straight to the modem but same issue. Also about a year ago i had comcast run a new line after they determined the line was not good.
I noticed in the modems error log the following throughout the day:
No Ranging Response received - T3 time-out
Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received
Unicast Ranging Received Abort Response - Re-initializing
These are the frequency stats on the modem. I appreciate any advice.
|Downstream Bonded Channels|
|Upstream Bonded Channels|
|Extended Upstream Transmit Power|
|Enable Extended Upstream Transmit Power|
|Current System Time:Sat Oct 24 18:21:50 2020|
|System Up Time:00:31:23|
The tech was just out here this morning and he said he actually lowered the levels beacause they were too high. Regarding the splitters, as i mentioned already i have removed already which does not seem to have made any difference.
40 to 45 dB is preferred. Here are the specs;
Specification Min Max
|Downstream Power Level|
|Gateways and EMTAs||-7dBmV||+7dBmV|
|Downstream Signal to Noise Ratio||35dB||-|
|Upstream Power Level||+35dBmV||+50dBmV|
|Upstream Signal to Noise Ratio||31dB||-|
|Upstream Receive Power||-2dBmV||+2dBmV|
so the 40-45 db i imagine you are referring to the upstream? maybe the tech only adjusted the downstream as it seems closer to the 35 reccomended. are there any other values that look like they need to be adjusted?
so the 40-45 db i imagine you are referring to the upstream?
maybe the tech only adjusted the downstream as it seems closer to the 35 reccomended.
That's not the power level for the downstream.. It's the SNR. They can't just adjust that. They need to do things to the line to get it as high as possible.
are there any other values that look like they need to be adjusted?