I have a Netgear CM1200 modem connected to Comcast. I see no errors reported, correctible or uncorrectible, and very seldom do I see any log messages other than Notice ones. But I have noticed a lot of Notice ones lately - in the last 3 days, there are 40. They look like the one below, the 2 MAC addresses match my modem and I assume something in the comcast network. The channel is always 33. The Event Type codes are:
16 - 5x
20 - 15x
22 - 13x
24 - 7x
Is this anything to be concerned about, and what are the 16,20,22,24 event codes or are they documented anywere so I can learn? Thanks!
CM-STATUS message sent. Event Type Code: 22; Chan ID: 33; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=XXXXXXXXXX;CMTS-MAC=XXXXXXXXXXXXXX;CM-QOS=1.1;CM-VER=3.1;
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Are these Modem Notices ok?
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Netgear IPv6 Problems With Comcast
I live in Montgomery County, MD and I currently have the Netgear RAX45 router which is connected to an Arris SB8200 modem. Consistently IPv6 disconnects after an hour or two and the only way to get it back is to reboot the router. I also tried IPv6 with the Netgear R6900P and the Netgear R6300 with the same results. I tried this with a different modem with the same results. Anyone else having IPv6 problems with a Netgear modem?
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[OUTAGE] Florida Outage
Im shocked nobody posted about the wide spread outage from the fiber cut. I was down in central florida from noon to later in the evening.. heres a thread
https://www.heraldtribune.com/story/news/local/2022/04/25/comcast-outage-no-internet-florida/7446019001/
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CM1000v2 Firmware Update broke NAT routing to 192.168.100.1?
Received a firmware update to my Netgear CM1000v2 on 4/13 in the 2am hour, and found I can no longer access the modem's configuration UI at 192.168.100.1 from behind a NAT. Anyone else seeing this issue?
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[NEWS] D4.0 breakthrough / ESD cascades / Death of Node+0?
https://www.fiercetelecom.com/telecom/docsis-40-breakthrough-could-enable-esd-cascades-without-performance-loss
Caught this intertwining bit on fierce telecom
We'll see what it actually means and enables.
If it actually works well it could be the death of Node+0
The industry sources did not share the technical details of the expected announcement. But Heynen speculated Remote-PHY nodes could give operators more flexibility to adjust OFDM signals and install high pass filters to help prevent signal degradation. Remote-PHY is one of the technology options for a new distributed access architecture operators are looking to adopt as a step on the road toward DOCSIS 4.0.
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New England region mid-split prep progress
only took 7 years but it looks like there is finally some mid-split progress. sometime in the last month QAMs below 108mhz were cleared out.
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[Signals] Downstream light flashing
Netgear Nighthawk voice modem after reboot the modem locks down except the downstream light is flashing.
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[Equip] MB8611 Downstream Blue Light Blinking
Happened to notice that the downstream light on my MB8611 is blinking. Looking at signals they all look good and only indication of any issues were some noticeable hiccups in my afternoon google meets and zoom session.
I have like 30+ messages like below in the log since around 1PM EDT today. Normally the log is very quiet.
17:01:10
Thu Apr 28 2022 Notice (6) CM-STATUS message sent. Event Type Code: 24; Chan ID: 33; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=xxxxxx;CMTS-MAC=00:01:5c:69:86:47;CM-QOS=1.1;CM-VER=3.1;
Edit: Looks like they were event codes 16 and 24
16 DS OFDM profile failure FEC errors were over limit on one of the assigned downstream OFDM profiles of a channel
24 OFDM profile recovery FEC recovery on OFDM profile
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[Equip] New Modem on My Device Info: Netgear CM3050V
CM3050V is the name but it 'looks' the same as the CM2050V. Anyone care to speculate?
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modem stats
does the s33,sb8200,mb8600 all read the ofdm channel where the correctables go from the positive range to the negative range back and forth like the mb8611 does?just curious.
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Frequent disconnects and errors after months of no issues
Hello,
For the past week or so, my CAX80 modem/router has been consistently being disconnected, has been showing errors 16 & 24 in the log, and at times only bonding to 1 DS channel. I have attached my connection stats after I just reconnected to see if maybe something is up with my levels (which would be a little weird just because absolutely nothing has changed in my setup). Any advice you might be able to provide would be much appreciated!
Kevin
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[Signals] Sigs
Hey all back with comcast after about 6 years of AT&T. I have the low grade 50/10(60/12) tier. Seems to work well enough but signals are on the high side should i leave it alone or add a forward path atenuator in the line. I have several of different values.
1 Locked QAM256 29 579000000 Hz 11.3 dBmV 38.9 dB 0 0
2 Locked QAM256 42 657000000 Hz 10.6 dBmV 37.9 dB 0 0
3 Locked QAM256 43 663000000 Hz 10.5 dBmV 37.9 dB 0 0
4 Locked QAM256 44 669000000 Hz 10.4 dBmV 38.1 dB 0 0
5 Locked QAM256 33 603000000 Hz 11.1 dBmV 39.4 dB 0 0
6 Locked QAM256 34 609000000 Hz 10.9 dBmV 38.7 dB 0 0
7 Locked QAM256 35 615000000 Hz 10.8 dBmV 38.3 dB 0 0
8 Locked QAM256 36 621000000 Hz 10.9 dBmV 38.4 dB 0 0
9 Locked QAM256 37 627000000 Hz 10.8 dBmV 37.8 dB 0 0
10 Locked QAM256 38 633000000 Hz 10.7 dBmV 38.0 dB 0 0
11 Locked QAM256 39 639000000 Hz 10.6 dBmV 38.0 dB 0 0
12 Locked QAM256 40 645000000 Hz 10.5 dBmV 37.9 dB 0 0
13 Locked QAM256 41 651000000 Hz 10.6 dBmV 38.2 dB 0 0
14 Locked QAM256 30 585000000 Hz 11.3 dBmV 39.0 dB 0 0
15 Locked QAM256 31 591000000 Hz 11.4 dBmV 38.9 dB 0 0
16 Locked QAM256 32 597000000 Hz 11.2 dBmV 38.5 dB 0 0
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 3 5120 Ksym/sec 22800000 Hz 35.9 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 35600000 Hz 36.0 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 29200000 Hz 36.0 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 16400000 Hz 36.0 dBmV
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[Rant] Sigh... upload issues have returned.
So some of you might have recalled my upload issues and trying to get them resolved was a massive pain.
It appears they are back yet again.
It's been fine for the last two and a half months and re-appeared again.
Same behavior as last time. Multi-Stream TCP uploads i'll get 42 Mbps but attempt to upload a file to google drive, dropbox, or any service and it's down to 2 Mbps today.
This is complete bullshit. It might be upstream noise again but i'm thinking it might be them throttling. I'm sick of dealing with this bullshit. Get me off of shitty DOCSIS and onto fiber already...
Of course no visible signal problems or error logs.
Not worth trying to get somebody out here because it will be the same trio of incompetency that nothing is wrong. Hopefully it will resolve itself again.
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Two factor authentication not working with Comcast
I tried to set up an online account with a bank which already had my land line phone number with Comcast. Their system needed to send an authorization code & I selected to receive a phone call because a text wouldn't work. But I never received a code, & tried several times.
I called & they said it wasn't working because it was VOIP. I said what's that got to do with it? It's a phone call & it works when another bank calls me. Of course the rep has no idea why it doesn't work.
Is there some reason a system generated 2FA code could not be sent via a phone call when using VOIP? Again it works with another bank? Is it something technical & the one bank isn't doing what's necessary? Or could it be they think it's just not secure?
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dhcp lease time
i was just wondering if this is the correct way i was reading this,when the lease time is very low like 1 hour or so this means probably maintenance going on,now that means the lease time i see in my router connection status from the dhcp server handing out this lease am i correct in this?
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[Equip] Zoom 5370 Still Supported?
Today my internet stopped working. The landing page says there is a balance due, however I am on autopay with the next payment due 15 May. After MUCH frustration I was able to get a live agent. ( Tip: saying agent or operator does not work, press 0 many times ). He tried to reconnect my account after verifying it was current but was unable and the department that does that with "super powers" is off until Monday.
We tried adding the existing modem back into the account but his system said (and the "back office" verified) that the MAC was not recognized.
So, does Comcast still support the 16x4 Zoom 5370 modem on the 300 tier? I did not see any Zooms listed on the "approved list" just now when I checked. So is it EOL? If it is, I will not waste any more time with Comcast until I can put the Docsis 3.1 in my closet on the Coax.
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how stupid, getting rid of the gateway configuration website
It was bad enough when they started taking features out of the gateway's own internal web page and making you use the corporate web page. (What if your internet is down?) Then they started disabling features altogether (like changing your wifi channels). Now, they want to get rid of the web page and make you do everything (whatever options are going to be left, that is) using the app. Like I want to do everything squinting at a tiny little screen and poking at a tiny little keyboard. (And what if you don't even have a mobile device?)
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CM1000v2 Firmware Update broke NAT routing to 192.168.100.1?
Received a firmware update to my Netgear CM1000v2 on 4/13 in the 2am hour, and found I can no longer access the modem's configuration UI at 192.168.100.1 from behind a NAT. Anyone else seeing this issue?
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What are each of these (nodes/amps)?
This area was redone about 2ish years ago, just before the pandemic. I was told it was made to Node+0 standards, no idea if its true.
First (sorry for angle) is a pretty square cube. 1 in 1 out. If it makes a difference, I know theres one of these before a single line enters a local hotel to cover all its rooms.
2nd and 3rd are same (to my eye) being a narrow rectangle, not the big fat rectangle nodes Ive seen elsewhere on here. With a mix of 1 or 2 connections to a side (for a total of 3 or 4). The third picture has a power meter/box on the ground.
I have a mix of these along a 4 mile road. The power meter one is near the end of the fiber termination, with the overall end of line about a quarter mile a way.
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MB8600 Modem - Lost an upstream channel
MB8600 Modem - Lost an upstream channel
For some reason I can tell based on the event log reported by the modem, out of 4 upstrean channels , I only see 3 now. Midco tech checked and didn't find anything wrong. There are 4 channels seen on his test meter. The 4th channel has 40dBv but modem won't show it. Not sure if that would cause these events in the modem?. Does anyone know what would be the possible cause of these ? Thanks
14:45:05
Thu Feb 10 2022 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=xx:xx;CMTS-MAC=xx:xx;CM-QOS=1.1;CM-VER=3.1;
14:45:05
Thu Feb 10 2022 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=xx:xx;CMTS-MAC=xx:xx;CM-QOS=1.1;CM-VER=3.1;
14:45:08
Thu Feb 10 2022 Critical (3) UCD invalid or channel unusable;CM-MAC=xx:xx;CMTS-MAC=xx:xx;CM-QOS=1.1;CM-VER=3.1;
14:45:09
Thu Feb 10 2022 Warning (5) REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=xx:xx;CMTS-MAC=xx:xx;CM-QOS=1.1;CM-VER=3.1;
Upstream Bonded Channels
Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked SC-QAM 1 5120 35.2 50.0
2 Locked SC-QAM 2 5120 28.8 49.5
3 Locked SC-QAM 3 5120 22.4 48.8
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