Visitor
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6 Messages
No Ranging Response received - T3 time-out
I get this message about every 15 minutes. I have a straight line connection from the exterior box on the house. My modem is a Netgear CM2000 Nighthawk. My power levels are good both up and downstream. There doesn't seem to be a problem with the modem which is relatively new. This is effecting the stability of my connection.
Xfinity truck was in front of my house yesterday doing work on the pole right where my cable is connected because there had been an outage.
I'm thinking they should come out and test my line at the box on my house.
EG
Expert
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111K Messages
2 days ago
Please post the signal status value table in its entirety. Copy and paste it rather than posting a screenshot.
Please also post the error log entries in their entirety. Copy all of the text (instead of using an image) and paste it into your next post here, but you'll need to redact all of the CM MAC and CMTS MAC addresses. The forum bot will not allow your post to be seen publicly.
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user_td1rqz
Visitor
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6 Messages
2 days ago
Your setup looks fine. If you can't access the internet, make sure you properly activated the modem. If modem has been activated and you still can't access the internet, contact your service provider for troubleshooting help.
If you can access the internet but has other internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.
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EG
Expert
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111K Messages
2 days ago
@user_td1rqz Thanks. As was stated, please edit your post and redact the MAC addresses. The forum bot made your post "Private".
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user_td1rqz
Visitor
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6 Messages
2 days ago
Weird. I didn't copy paste the MAC address. Don't know why those fields showed up.
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user_td1rqz
Visitor
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6 Messages
2 days ago
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user_td1rqz
Visitor
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6 Messages
2 days ago
Your setup looks fine. If you can't access the internet, make sure you properly activated the modem. If modem has been activated and you still can't access the internet, contact your service provider for troubleshooting help.
If you can access the internet but has other internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.
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EG
Expert
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111K Messages
2 days ago
So, a moderator redacted them for you. That said, the downstream stats are good. And even though the power levels are good, the upstream seems to indicate an impairment of some sort because only two channels are locked in (there should be 3 to 6 channels), and channel 21 is operating at a lower symbol rate than the other (2560 Ksym/sec). These error log entries also indicate an upstream / return path signal quality problem;
TCS = (Transmit Control Set).
There are other signal stat values that can't be read by the modem. They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch." (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). These are as equally important in diagnosing connectivity issues as are the modem's stats.
I'm going to escalate your issue to the Comcast corporate employees (The Digital Care Team) who are available to these boards. They will be able to poll the CMTS (Cable Modem Termination System) to check for any real-time degradation and / or error reports, see your node / cable plant, and modem health, and see whether or not everything is in the green zone. They can also see a history plot for the modem and those upstream receive signal stats.
You should get a reply here in your topic. Good luck !
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EG
Expert
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111K Messages
2 days ago
@user_td1rqz @XfinityEva
It's my pleasure !
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