Semi-Frequent MDD message timeout - which leads to high packet loss events / disconnects

With the continued work from home routine it has been an interesting observation of how frequent our connection drops throughout the day. If was a rare occurrence that would be fine and I understand that residential high speed internet isn't going to get the same attention as business class tiers. However, with the rates continuing to increase it's starting to get hard to justify this is the new normal internet for us.

As such I started trying to document the times and events when this happens. I notice on the router logs there are packet loss events which tie to either MDD message timeout or SYNC Timing Synchronization failure - Loss of Sync in the cable modem logs. Today new messages showed such as RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW. Based upon other threads on signals it would appear the upstream signals are high for us.

Earlier this summer our line was accidently cut by Xfinity when another house added service - as such a new line was installed to the house so I think we can at least rule out a bit of that. Though the tech mentioned there was an extra splitter in the green box since there were more than 4 houses being serviced. The line to the house has one comcast installed splitter which one line leads directly to the cable modem (new cable) and another to the TV via another outside dig to the other side of the house. There are no additional splitters installed.

Modem info: Netgear CM1100 (less than 2 years old)

Current signals / info (uptime ~ 1 hour)

Frequency start Value

This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.

Starting Frequency

Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	399000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enable	BPI+
IP Provisioning Mode	Honor MDD	IPv6 only

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR / MER	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	QAM256	1	399000000 Hz	1.0 dBmV	41.4 dB	81859998	4229	3363
2	Locked	QAM256	2	405000000 Hz	1.0 dBmV	41.4 dB	80486675	57484	65375
3	Locked	QAM256	3	411000000 Hz	1.2 dBmV	41.4 dB	133078111	172492	143335
4	Locked	QAM256	4	417000000 Hz	-0.1 dBmV	40.9 dB	80604491	87381	85238
5	Locked	QAM256	5	423000000 Hz	-2.3 dBmV	40.0 dB	80521172	116472	95582
6	Locked	QAM256	6	429000000 Hz	-1.8 dBmV	40.1 dB	79231666	10740	7928
7	Locked	QAM256	7	435000000 Hz	-1.8 dBmV	40.0 dB	79214100	6304	8303
8	Locked	QAM256	8	441000000 Hz	-1.8 dBmV	39.9 dB	131472759	129443	123777
9	Locked	QAM256	9	447000000 Hz	-2.2 dBmV	39.8 dB	114520893	38330	67348
10	Locked	QAM256	10	453000000 Hz	-2.1 dBmV	39.8 dB	131520965	164126	159528
11	Locked	QAM256	11	459000000 Hz	-1.6 dBmV	39.8 dB	114770756	39388	65966
12	Locked	QAM256	12	465000000 Hz	-1.1 dBmV	40.1 dB	79282428	112285	90824
13	Locked	QAM256	13	471000000 Hz	0.3 dBmV	40.6 dB	79939474	136379	104590
14	Locked	QAM256	14	477000000 Hz	1.3 dBmV	40.9 dB	79203213	744	1193
15	Locked	QAM256	15	483000000 Hz	1.3 dBmV	40.5 dB	79213122	1541	680
16	Locked	QAM256	16	489000000 Hz	0.9 dBmV	40.7 dB	79289092	113116	65565
17	Locked	QAM256	17	495000000 Hz	0.3 dBmV	40.6 dB	79247647	70007	41532
18	Locked	QAM256	18	507000000 Hz	-2.1 dBmV	39.5 dB	78808893	7949	3570
19	Locked	QAM256	19	513000000 Hz	-2.8 dBmV	39.2 dB	160938965	144349	91432
20	Locked	QAM256	20	519000000 Hz	-2.8 dBmV	39.1 dB	79411697	206755	222247
21	Locked	QAM256	21	525000000 Hz	-2.7 dBmV	39.2 dB	79262973	100308	110516
22	Locked	QAM256	22	531000000 Hz	-1.7 dBmV	39.7 dB	161101400	164088	117200
23	Locked	QAM256	23	537000000 Hz	0.2 dBmV	40.5 dB	79380672	8415	7847
24	Locked	QAM256	24	543000000 Hz	1.1 dBmV	40.8 dB	78930204	11933	2748
25	Locked	QAM256	25	549000000 Hz	1.7 dBmV	40.8 dB	161335313	238738	154873
26	Locked	QAM256	26	555000000 Hz	1.3 dBmV	40.7 dB	160921076	301046	268965
27	Locked	QAM256	27	561000000 Hz	0.0 dBmV	40.1 dB	79327207	195356	169709
28	Locked	QAM256	28	567000000 Hz	-2.0 dBmV	39.0 dB	78945424	62366	55733
29	Locked	QAM256	29	573000000 Hz	-3.3 dBmV	38.5 dB	160613391	191884	268950
30	Locked	QAM256	30	579000000 Hz	-3.2 dBmV	38.6 dB	160641957	230956	278975
31	Locked	QAM256	31	585000000 Hz	-3.2 dBmV	38.6 dB	79338302	137078	219009
32	Locked	QAM256	32	591000000 Hz	-2.9 dBmV	38.8 dB	79529534	200695	237964

Upstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power
1	Locked	ATDMA	1	10400000 Hz	48.3 dBmV
2	Locked	ATDMA	2	16400000 Hz	49.8 dBmV
3	Locked	ATDMA	3	22800000 Hz	50.8 dBmV
4	Locked	ATDMA	4	29200000 Hz	51.8 dBmV
5	Locked	ATDMA	5	35600000 Hz	51.3 dBmV
6	Locked	ATDMA	6	40400000 Hz	51.8 dBmV
7	Not Locked	Unknown	0	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Hz	0.0 dBmV

Downstream OFDM Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power	SNR / MER	Active Subcarrier Number Range	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	0	159	690000000 Hz	-1.2 dBmV	37.3 dB	1126 ~ 2969	137579637	16389183	929349
2	Not Locked	0	0	0 Hz	-2.3 dBmV	0.0 dB	0 ~ 4095	0	0	0

Upstream OFDMA Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Not Locked	Unknown	0	0 Hz	0 dBmV
2	Not Locked	Unknown	0	0 Hz	0 dBmV

Current System Time: Tue Aug 10 14:58:39 2021

System Up Time: 1:01:22

Logs of the most recent incidents - - I've replaced the MAC addresses with REDACTED in hopes this doesn't make this message "private"

Time	Priority	Description
2021-08-10, 14:33:28	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:33:23	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:32:16	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:47	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:42	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:25	Notice (6)	CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:21	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:13	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:09	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:07	Notice (6)	CM-STATUS message sent. Event Type Code: 21; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:05	Notice (6)	CM-STATUS message sent. Event Type Code: 5; Chan ID: 16; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:05	Notice (6)	CM-STATUS message sent. Event Type Code: 2; Chan ID: 8 9 10 11 12 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:05	Notice (6)	CM-STATUS message sent. Event Type Code: 1; Chan ID: 8 9 10 11 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:02	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:00	Notice (6)	CM-STATUS message sent. Event Type Code: 2; Chan ID: 8 9 10 11 12 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:31:00	Notice (6)	CM-STATUS message sent. Event Type Code: 1; Chan ID: 10 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:56	Notice (6)	CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:56	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:56	Notice (6)	CM-STATUS message sent. Event Type Code: 2; Chan ID: 10 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:49	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:46	Notice (6)	CM-STATUS message sent. Event Type Code: 5; Chan ID: 18 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:45	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:37	Warning (5)	Dynamic Range Window violation
2021-08-10, 14:30:37	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:36	Warning (5)	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:30:23	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
2021-08-10, 14:29:56	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:41	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:40	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:38	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:38	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:31	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:30	Notice (6)	CM-STATUS message sent. Event Type Code: 2; Chan ID: 28 29 30 31 38 39 40 41 42 43 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:30	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:29:16	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:28:57	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:28:32	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:28:19	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:27:01	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 14:25:08	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:58:07	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:58:07	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:58:07	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:58:07	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:58:07	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:58:07	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:58:07	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:58:07	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:58:07	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:58:07	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:58:07	Warning (5)	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:14	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:41:51	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:37:00	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:44	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:39	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-08, 22:46:37	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:46:40	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:45:25	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:44:46	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:43:39	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:43:30	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:43:13	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:48	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:43	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:33	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:42:33	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:33	Warning (5)	Dynamic Range Window violation
2021-08-10, 13:42:33	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:32	Warning (5)	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:42:37	Notice (6)	Honoring MDD; IP provisioning mode = IPv6
2021-08-10, 13:42:14	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:41:52	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:41:51	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:41:42	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:37:23	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:37:23	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:37:00	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:59	Warning (5)	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:44	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:43	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:39	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:24	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:18	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:36:10	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:35:23	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:57	Notice (6)	CM-STATUS message sent. Event Type Code: 4; Chan ID: 20 25 27 28 29 30 31 32 33 36 37 38 39 40 41 42 43 44 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:54	Notice (6)	CM-STATUS message sent. Event Type Code: 4; Chan ID: 25 27 29 30 31 32 33 36 37 38 39 40 41 42 43 44 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:54	Notice (6)	CM-STATUS message sent. Event Type Code: 1; Chan ID: 20 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:54	Notice (6)	CM-STATUS message sent. Event Type Code: 5; Chan ID: 21 22 26 27 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:54	Notice (6)	CM-STATUS message sent. Event Type Code: 2; Chan ID: 20 28; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:45	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:34:40	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:33:45	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:29:52	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:29:01	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-10, 13:28:35	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;

If there is any additional information that I can provide please let me know. Just to clarify once again, there are no additional splitters on the inside of the house, the cable from outside to the modem inside is brand new and connections were installed by an Xfinity technician.

Thanks

Responses

CCAaron1

Problem Solver

•

954 Messages

4 years ago

Hello @Inxfrk. I am sorry to hear you are having internet issues. I would love to do some troubleshooting with you and if that does not work, get a tech out. Please send me a direct message with your first and last name, along with your complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forums page. 

Here are detailed steps to direct message us: 

 • Click "Sign In" if necessary

 • Click the direct message icon

 • Click the "New message" (pencil and paper) icon

 • Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list

 • Type your message in the text area near the bottom of the window

 • Press Enter to send your message

EG

Expert

•

110K Messages

4 years ago

@lnxfrk

The upstream power is too high. That is the problem. If there's nothing more that you can do to improve it, you'll have to get the techs involved.

Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home.

Good luck !

lnxfrk

Contributor

•

22 Messages

4 years ago

I see the forum is asking me to mark an accepted answer and if I had to choose it would the reply from @EG as a tech came out and checked things and found what he called it a "wave" coming off the wire from the tap before the drop to the house. The tech said things looked fine from tap to the house and from the splitter coming into the house. A maintenance ticket was logged and something was done. Things are better signal wise and more stable but there are times of the day that things get wonky again and causes just enough packet loss to disrupt connections to work. If I were to guess there likely needs to be another review of the lines coming from the node but who knows hold old that infrastructure is and how neglected it has become.

Anyway, signals today - still some oddness with downstream OFDM as that is typically all I see in the modem logs these days.

Frequency start Value

Starting Frequency

Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	495000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enable	BPI+
IP Provisioning Mode	Honor MDD	IPv6 only

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR / MER	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	QAM256	17	495000000 Hz	-0.6 dBmV	41.3 dB	2220427234	699	947
2	Locked	QAM256	33	597000000 Hz	-1.9 dBmV	40.2 dB	2218275474	6755	2109
3	Locked	QAM256	34	603000000 Hz	-1.3 dBmV	40.4 dB	2218281374	5441	2741
4	Locked	QAM256	35	609000000 Hz	-1.7 dBmV	40.1 dB	2218291940	3664	3206
5	Locked	QAM256	36	615000000 Hz	-2.3 dBmV	39.9 dB	2218300746	2090	2187
6	Locked	QAM256	37	621000000 Hz	-2.6 dBmV	39.5 dB	2218307739	1492	945
7	Locked	QAM256	38	627000000 Hz	-3.1 dBmV	39.4 dB	2218318372	1939	231
8	Locked	QAM256	39	633000000 Hz	-3.4 dBmV	39.5 dB	2218323720	3269	151
9	Locked	QAM256	40	639000000 Hz	-3.4 dBmV	39.3 dB	2218350242	4294	193
10	Locked	QAM256	41	645000000 Hz	-3.0 dBmV	39.4 dB	2218359775	2874	173
11	Locked	QAM256	42	651000000 Hz	-2.9 dBmV	39.4 dB	2218365778	4030	509
12	Locked	QAM256	43	657000000 Hz	-2.5 dBmV	39.4 dB	2218340736	27562	4904
13	Locked	QAM256	13	471000000 Hz	-0.1 dBmV	41.4 dB	2228978187	3617	2426
14	Locked	QAM256	14	477000000 Hz	0.2 dBmV	41.4 dB	2228986667	365	156
15	Locked	QAM256	15	483000000 Hz	-0.1 dBmV	40.9 dB	2228991038	38	34
16	Locked	QAM256	16	489000000 Hz	-0.2 dBmV	41.3 dB	2228998210	221	112
17	Locked	QAM256	44	663000000 Hz	-1.7 dBmV	39.8 dB	2218180928	148296	132643
18	Locked	QAM256	18	507000000 Hz	-2.9 dBmV	40.4 dB	2229053088	577	60
19	Locked	QAM256	19	513000000 Hz	-3.9 dBmV	40.1 dB	2229057193	351	107
20	Locked	QAM256	20	519000000 Hz	-3.9 dBmV	40.1 dB	2229062291	444	169
21	Locked	QAM256	21	525000000 Hz	-3.1 dBmV	40.5 dB	2229064636	861	362
22	Locked	QAM256	22	531000000 Hz	-1.7 dBmV	40.9 dB	2229067498	957	588
23	Locked	QAM256	23	537000000 Hz	-0.4 dBmV	41.3 dB	2229071736	671	392
24	Locked	QAM256	24	543000000 Hz	-0.6 dBmV	41.1 dB	2229075453	832	583
25	Locked	QAM256	25	549000000 Hz	-1.0 dBmV	40.8 dB	2229073609	3978	820
26	Locked	QAM256	26	555000000 Hz	-1.3 dBmV	40.7 dB	2229056777	22709	2428
27	Locked	QAM256	27	561000000 Hz	-1.4 dBmV	40.6 dB	2227635180	404906	1044152
28	Locked	QAM256	28	567000000 Hz	-2.8 dBmV	39.7 dB	2227888595	490689	711525
29	Locked	QAM256	29	573000000 Hz	-4.1 dBmV	39.5 dB	2228979458	107351	8016
30	Locked	QAM256	30	579000000 Hz	-4.1 dBmV	39.5 dB	2229069713	30100	1043
31	Locked	QAM256	31	585000000 Hz	-3.9 dBmV	39.6 dB	2229084329	16783	757
32	Locked	QAM256	32	591000000 Hz	-3.4 dBmV	39.8 dB	2229086064	10954	1303

Upstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power
1	Locked	ATDMA	1	10400000 Hz	45.3 dBmV
2	Locked	ATDMA	2	16400000 Hz	46.5 dBmV
3	Locked	ATDMA	3	22800000 Hz	47.8 dBmV
4	Locked	ATDMA	4	29200000 Hz	48.8 dBmV
5	Locked	ATDMA	5	35600000 Hz	48.3 dBmV
6	Locked	ATDMA	6	40400000 Hz	49.0 dBmV
7	Not Locked	Unknown	0	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Hz	0.0 dBmV

Downstream OFDM Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power	SNR / MER	Active Subcarrier Number Range	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	0	159	690000000 Hz	-1.7 dBmV	38.3 dB	1126 ~ 2969	9210407568	165780572	14220952
2	Not Locked	0	0	0 Hz	-4.9 dBmV	0.0 dB	0 ~ 4095	0	0	0

Upstream OFDMA Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Not Locked	Unknown	0	0 Hz	0 dBmV
2	Not Locked	Unknown	0	0 Hz	0 dBmV

Current System Time: Thu Aug 19 13:17:00 2021

System Up Time: 66:09:36

Time	Priority	Description
2021-08-19, 13:13:40	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 13:13:01	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 12:49:43	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 12:45:41	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 12:45:34	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 12:40:41	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 12:40:26	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 12:37:53	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:59:34	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:58:54	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:46:58	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:46:30	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:37:01	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:36:33	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:32:59	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:29:48	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:29:12	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:27:53	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:26:39	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:26:25	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:25:56	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 11:25:39	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:51:37	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:50:42	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:47:29	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:45:59	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:45:42	Notice (6)	CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:45:37	Notice (6)	CM-STATUS message sent. Event Type Code: 1; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:45:35	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:45:34	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:43:55	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:43:24	Notice (6)	CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:43:19	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:43:19	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:43:18	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:42:45	Notice (6)	CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:39:48	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:39:21	Notice (6)	CM-STATUS message sent. Event Type Code: 4; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:39:17	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:39:16	Warning (5)	MDD message timeout;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:39:03	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:37:32	Notice (6)	CM-STATUS message sent. Event Type Code: 20; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;
2021-08-19, 10:36:58	Notice (6)	CM-STATUS message sent. Event Type Code: 22; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=REDACTED;CMTS-MAC=REDACTED;CM-QOS=1.1;CM-VER=3.1;

MDD message timeout events correlate to the packet loss

XfinityLinda

Official Employee

•

1.8K Messages

Thank you, @lnxfrk! We appreciate your feedback!

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer. tick

4 years ago

EG

Expert

•

110K Messages

4 years ago

@lnxfrk

FWIW, the upstream power is still on the high side on channels 4,5, and 6..... And it's probably fluctuating higher intermittently. Not much wiggle room there....

lnxfrk

Contributor

•

22 Messages

4 years ago

@EG yes, good point. Is that something that a home user could remedy or is that something I would need to involve a tech?

Thank you again!

EG

Expert

•

110K Messages

@lnxfrk

You are going to have to get the techs involved again until it is fixed properly.

Good luck !

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer! tick

4 years ago

lnxfrk

Contributor

•

22 Messages

4 years ago

FYI - after a lot of troubleshooting and a couple of techs on site this issue has been resolved. There was a failing component at the node and a bad line upstream causing the issues. Other than normal maintenance the connection and signals have been absolutely great since the 27th of September. Thank you @EG and @XfinityAaron for the replies.

EG

Expert

•

110K Messages

@lnxfrk

Glad you got it squared away ! Thanks for circling back ! Now closing this thread.

4 years ago

Your Home Network

lnxfrk

Semi-Frequent MDD message timeout - which leads to high packet loss events / disconnects

CCAaron1

EG

lnxfrk

XfinityLinda

EG

lnxfrk

EG

lnxfrk

EG

New to the Community?