Intermittent internet outages

[dodgyknees]

I am having a similar problem - intermittent loss of internet connection for one or more devices.  I would like to pin down the timing and circumstances of these glitches, but I cannot find how to start the "event log" of my new Arris SB8200 cable modem which was bought to replace an older modem which had the same problem.

Please advise on how to enable event logging.

With thanks.

[EG]

Browse to http://192.168.100.1

admin is the default username and password is the default password.

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers along with the error log entries in their entirety.

[dodgyknees]

There is nothing in the event log.  How do I enable logging?

The status is

Downstream Bonded Channels

Channel ID	Lock Status	Modulation	Frequency	Power	SNR/MER	Corrected	Uncorrectables
44	Locked	QAM256	693000000 Hz	2.3 dBmV	40.4 dB	0	0
17	Locked	QAM256	507000000 Hz	3.2 dBmV	40.7 dB	0	0
18	Locked	QAM256	513000000 Hz	3.4 dBmV	40.8 dB	0	0
19	Locked	QAM256	519000000 Hz	3.6 dBmV	40.8 dB	0	0
20	Locked	QAM256	525000000 Hz	3.9 dBmV	40.9 dB	0	0
21	Locked	QAM256	531000000 Hz	3.7 dBmV	40.8 dB	0	0
22	Locked	QAM256	537000000 Hz	3.3 dBmV	40.6 dB	0	0
23	Locked	QAM256	543000000 Hz	2.6 dBmV	40.5 dB	0	0
24	Locked	QAM256	549000000 Hz	2.2 dBmV	40.4 dB	0	0
25	Locked	QAM256	555000000 Hz	2.0 dBmV	40.3 dB	0	0
26	Locked	QAM256	561000000 Hz	2.1 dBmV	40.3 dB	0	0
27	Locked	QAM256	567000000 Hz	2.4 dBmV	40.4 dB	0	0
28	Locked	QAM256	573000000 Hz	2.8 dBmV	40.4 dB	0	0
29	Locked	QAM256	579000000 Hz	3.0 dBmV	40.3 dB	0	0
30	Locked	QAM256	585000000 Hz	3.1 dBmV	40.4 dB	0	0
31	Locked	QAM256	591000000 Hz	3.0 dBmV	40.2 dB	0	0
32	Locked	QAM256	597000000 Hz	2.6 dBmV	40.2 dB	0	0
33	Locked	QAM256	603000000 Hz	2.1 dBmV	40.1 dB	0	0
34	Locked	QAM256	609000000 Hz	1.6 dBmV	40.1 dB	0	0
35	Locked	QAM256	615000000 Hz	1.4 dBmV	40.0 dB	0	0
36	Locked	QAM256	621000000 Hz	1.5 dBmV	40.1 dB	0	0
37	Locked	QAM256	627000000 Hz	1.8 dBmV	40.2 dB	0	0
38	Locked	QAM256	633000000 Hz	2.1 dBmV	40.2 dB	0	0
39	Locked	QAM256	639000000 Hz	2.3 dBmV	40.2 dB	0	0
40	Locked	QAM256	645000000 Hz	2.1 dBmV	40.1 dB	0	0
41	Locked	QAM256	651000000 Hz	1.8 dBmV	40.0 dB	0	0
42	Locked	QAM256	681000000 Hz	1.2 dBmV	39.9 dB	1	0
43	Locked	QAM256	687000000 Hz	2.1 dBmV	40.4 dB	0	0
45	Locked	QAM256	699000000 Hz	2.5 dBmV	40.4 dB	0	0
46	Locked	QAM256	705000000 Hz	2.8 dBmV	40.3 dB	1	0
47	Locked	QAM256	717000000 Hz	3.1 dBmV	40.4 dB	0	0
48	Locked	Other	850000000 Hz	-2.5 dBmV	37.5 dB	976110849	0

Upstream Bonded Channels

Channel	Channel ID	Lock Status	US Channel Type	Frequency	Width	Power
1	5	Locked	SC-QAM Upstream	40400000 Hz	1600000 Hz	38.0 dBmV
2	1	Locked	SC-QAM Upstream	16400000 Hz	6400000 Hz	39.0 dBmV
3	2	Locked	SC-QAM Upstream	22800000 Hz	6400000 Hz	36.0 dBmV
4	3	Locked	SC-QAM Upstream	29200000 Hz	6400000 Hz	37.0 dBmV
5	4	Locked	SC-QAM Upstream	35600000 Hz	6400000 Hz	43.0 dBmV

Current System Time: Mon Nov 16 10:31:09 2020

[EG]

The stats are o/k. Error logging should be enabled by default. Perhaps there just aren't currently any errors ? You can test this by power cycling the modem. After doing so, there should be some start-up error entries listed there.

[dodgyknees]

Here is a partial list of recent events from the log.

The three error types keep repeating at about 1 minute intervals.

Also now, the status is showing many corrected and incorrectable errors across all channels.

Date Time Event ID Event Level Description

11/16/2020 15:31	82000200	3	"No Ranging Response received - T3 time-out;CM-MAC=a8:97:cd:ed:12:29;CMTS-MAC=00:01:5c:62:b6:80;CM-QOS=1.1;CM-VER=3.1;"
11/16/2020 15:31	82000800	3	"16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=a8:97:cd:ed:12:29;CMTS-MAC=00:01:5c:62:b6:80;CM-QOS=1.1;CM-VER=3.1;"
11/16/2020 15:31	82000300	3	"Ranging Request Retries exhausted;CM-MAC=a8:97:cd:ed:12:29;CMTS-MAC=00:01:5c:62:b6:80;CM-QOS=1.1;CM-VER=3.1;"