CM1000v2 Dopping connection to ISP

Question

Hello,&nbsp;My Netgear Cable Modem (CM1000v2) keeps dropping connection with my ISP. attached are my logs from the Modem including status page. My ISP is cox my package is 300Mbps down and 30Mbps up.&nbsp;2021-12-12, 10:15:19Notice (6)CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: �; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:15:13Warning (5)Unicast DSID PSN startup error2021-12-12, 10:15:10Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:15:10Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: 1 2 3; New Profile: 1 2.;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:11:05Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:10:44Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:08:35Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:08:22Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:20Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:02Warning (5)Dynamic Range Window violation2021-12-12, 10:03:02Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:02Warning (5)Dynamic Range Window violation2021-12-12, 10:03:02Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:02Warning (5)Dynamic Range Window violation2021-12-12, 10:03:02Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:01Warning (5)Dynamic Range Window violation2021-12-12, 10:03:01Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:01Warning (5)Dynamic Range Window violation2021-12-12, 10:03:01Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:03:01Warning (5)Dynamic Range Window violation2021-12-12, 10:03:01Warning (5)RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:02:56Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:02:51Notice (6)TLV-11 - unrecognized OID;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-12-12, 10:02:51Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedNotice (6)Honoring MDD; IP provisioning mode = IPv4Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;2021-11-28, 18:32:15Critical (3)No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-11-28, 18:32:12Critical (3)No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;2021-10-24, 16:25:31Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-10-19, 14:44:28Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;2021-10-19, 14:32:19Critical (3)No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

FURRYe38 · Answer

Please post a copy and paste of the modems connection status page.
Have the ISP check the signal and line quality UP to the modem.&nbsp;Be sure the ISP provisions the modem correctly.Be sure there are no coax cable line splitters in the between the modem and ISP service box.&nbsp;Be sure your using good quality RG6 coax cable up to the modem.&nbsp;Be sure to power OFF the modem for 1 minute then back ON.https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.htmlhttps://highspeed.tips/docsis-events/

Forum Discussion

CM1000v2 Dopping connection to ISP

1 Reply

2021-12-12, 10:15:19	Notice (6)	CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: �; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:15:13	Warning (5)	Unicast DSID PSN startup error
2021-12-12, 10:15:10	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:15:10	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: 1 2 3; New Profile: 1 2.;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:11:05	Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:10:44	Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:08:35	Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:08:22	Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:20	Notice (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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:02	Warning (5)	Dynamic Range Window violation
2021-12-12, 10:03:02	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:02	Warning (5)	Dynamic Range Window violation
2021-12-12, 10:03:02	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:02	Warning (5)	Dynamic Range Window violation
2021-12-12, 10:03:02	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:01	Warning (5)	Dynamic Range Window violation
2021-12-12, 10:03:01	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:01	Warning (5)	Dynamic Range Window violation
2021-12-12, 10:03:01	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:03:01	Warning (5)	Dynamic Range Window violation
2021-12-12, 10:03:01	Warning (5)	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:02:56	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:02:51	Notice (6)	TLV-11 - unrecognized OID;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-12-12, 10:02:51	Warning (5)	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Notice (6)	Honoring MDD; IP provisioning mode = IPv4
Time Not Established	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;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=38:94:ed:9e:a3:40;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=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;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=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-11-28, 18:32:15	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-11-28, 18:32:12	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;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=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2021-10-24, 16:25:31	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-10-19, 14:44:28	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
2021-10-19, 14:32:19	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:9e:a3:40;CMTS-MAC=cc:8e:71:68:75:d6;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=38:94:ed:9e:a3:40;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;