NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

Tutor

May 29, 2025

CM3000 Repeated Cox disconnects with SYNC Timing Synchronization failure

The CM3000, which I have owned for <30 days, is having repeated disconnection issues. Cox is my ISP. The disconnections occur randomly, but multiple times per day and always require a hard reboot. Th...

Tutor

May 30, 2025

Event Log:

Fri May 30 14:27:11 2025	(Critical (3))	No Ranging Response received - T3 time-out;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Fri May 30 14:25:42 2025	(Notice (6))	US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 10 13.;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Fri May 30 14:25:29 2025	(Warning (5))	Dynamic Range Window violation
Fri May 30 14:25:29 2025	(Warning (5))	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Fri May 30 14:25:24 2025	(Notice (6))	DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Fri May 30 14:25:22 2025	(Notice (6))	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Fri May 30 14:25:17 2025	(Notice (6))	TLV-11 - unrecognized OID;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	(Warning (5))	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:9a:d2:d2:dd:cb;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	(Notice (6))	Honoring MDD; IP provisioning mode = IPv4
Time Not Established	(Critical (3))	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=54:07:7d:c6:e4:28;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;