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I noticed earlier that upload seemed quite unstable. I ran a few tests and the first result was less than 2mbps, and the second was 0.1mbps. This is on a gigabit plan and a brand new cable modem (SB8200 purchased on April 2020).
I already had a tech come out and connect my modem directly to the cable drop. Althought things did get better for a brief moment, it looks like the line still has intermitten issues and the cable modem is now complaining about the OFDM channel as seen below:
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The table below contains the log of events that the SB8200 has detected. This log can be important to the service provider to help diagnose and correct problems, if any should occur.
| Date Time | Event ID | Event Level | Description |
|---|---|---|---|
| 08/06/2020 16:04 | 82000500 | 3 | "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/05/2020 21:08 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/05/2020 21:07 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 22:33 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 22:32 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:58 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:58 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:58 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:57 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:53 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:53 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:49 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:49 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:46 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:46 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:44 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:44 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:41 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:40 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:35 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:35 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
| 08/04/2020 21:32 | 74010100 | 6 | "CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=14:c0:3e;CMTS-MAC=00:27:90:0c:61:d2;CM-QOS=1.1;CM-VER=3.1;" |
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JustWantConsist
New Contributor
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I have been having the same issue for the past 3-4 months. Had about 7 techs come out and look at the problem. Changed out all of the coax cable, changed out pano modem, everything.. One of them told me that there was a 33% packet loss when he would read it from the pole, but when he had the maintenance bucket truck check the main line, they said there was no problem. I will get up to 600-700 mbps at times, but other times I will get 14-15 mbps. Lately it seems like the upload speed has severely been going up and down. It is one of the most frustrating things..
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Dave9
Contributor III
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The sequence of CM-STATUS Code 16 followed by Code 24 doesn't necessarily indicate a problem. These codes are used to track the number of correctable errors on the OFDM channel and it's normal to have a lot of correctable errors on OFDM. Only uncorrectable errors will cause packet loss or speed issues.But I have noticed that I start seeing more of these CM-STATUS Code 16 messages before bigger problems occur so maybe it's a sign that things are starting to degrade on the cable network.
The real problem in that log is the T3 timeout. This will cause problems with speed and packet loss. A lot of people have been reporting this recently so I wonder if Cox is having a widespread issue.
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Allan
Moderator
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@Coolsul, Your modem is reporting multiple time out errors and that will cause issues with the service. Are there any splitters or signal amps on the cable line going to the modem? -Allan, Cox Support Forums Moderator
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coolsul
New Contributor
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I have a quick update as I've been using a tool like PingPlotter to spot check the health of my internet.
2020-08-06 - Here I restarted the modem as you can see in the PingPlotter
https://imgur.com/3LthUv0
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