I am facing issues of frequent disconnects. From last 2 months I was facing lower speeds, 30Mbps or less on a plan of 300Mbps but upload spped is intact. I contacted Optimum and they told to contact modem manufacturer. I checked logs and found some warnings which are following. My modem is just few months old. Please let me know how to fix this issue.I also observed that modem clock is 1 hour behind.In case this issue is related to power in the line, is there any chances it can burn the device.Firmware Version V2.01.02ISP: Optimum, NJTimePriorityDescription2020-05-13, 10:06:24Notice (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:05:56Notice (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:03:58Warning (5)Dynamic Range Window violation2020-05-13, 10:03:58Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:03:57Warning (5)Dynamic Range Window violation2020-05-13, 10:03:57Warning (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:03:49Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:03:48Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:03:46Notice (6)Honoring MDD; IP provisioning mode = IPv42020-05-13, 10:03:41Critical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:03:23Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:49Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:48Warning (5)MDD message timeout;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:47Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:35Notice (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=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:26Notice (6)CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:18Notice (6)CM-STATUS message sent. Event Type Code: 5; Chan ID: 5; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:02:14Notice (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:01:51Warning (5)Dynamic Range Window violation2020-05-13, 10:01:51Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:01:36Notice (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 10:01:08Notice (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:59:27Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:59:27Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: 1 2 3; New Profile: 1 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:48:07Notice (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:47:48Warning (5)Unicast DSID PSN startup error2020-05-13, 09:47:19Warning (5)Dynamic Range Window violation2020-05-13, 09:47:19Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:47:18Warning (5)Dynamic Range Window violation2020-05-13, 09:47:18Warning (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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:47:09Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:47:04Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedNotice (6)Honoring MDD; IP provisioning mode = IPv4Time Not EstablishedCritical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;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:71:eb:38;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;2020-05-13, 09:38:13Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;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:71:eb:38;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;2020-05-12, 22:43:13Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;Time Not EstablishedCritical (3)UCD invalid or channel unusable;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;

Have the ISP check the signal and line quality UP to the modem. Be sure there are no coax cable line splitters in the between the modem and ISP service box. Be sure your using good quality RG6 coax cable up to the modem.

tony123456

Aspirant

May 13, 2020

Solved

FCM1100 : Frequent disconnect from internet with Optimum using Netgear CM1100 modem.

I am facing issues of frequent disconnects. From last 2 months I was facing lower speeds, 30Mbps or less on a plan of 300Mbps but upload spped is intact. I contacted Optimum and they told to contact modem manufacturer. I checked logs and found some warnings which are following. My modem is just few months old. Please let me know how to fix this issue.
I also observed that modem clock is 1 hour behind.
In case this issue is related to power in the line, is there any chances it can burn the device.

Firmware Version V2.01.02

ISP: Optimum, NJ

Time	Priority	Description
2020-05-13, 10:06:24	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:05:56	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:03:58	Warning (5)	Dynamic Range Window violation
2020-05-13, 10:03:58	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:03:57	Warning (5)	Dynamic Range Window violation
2020-05-13, 10:03:57	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:03:49	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:03:48	Warning (5)	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:03:46	Notice (6)	Honoring MDD; IP provisioning mode = IPv4
2020-05-13, 10:03:41	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:03:23	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:49	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:48	Warning (5)	MDD message timeout;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:47	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:35	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=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:26	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 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:18	Notice (6)	CM-STATUS message sent. Event Type Code: 5; Chan ID: 5; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:02:14	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:01:51	Warning (5)	Dynamic Range Window violation
2020-05-13, 10:01:51	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:01:36	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 10:01:08	Notice (6)	CM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:59:27	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:59:27	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: 1 2 3; New Profile: 1 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:48:07	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:47:48	Warning (5)	Unicast DSID PSN startup error
2020-05-13, 09:47:19	Warning (5)	Dynamic Range Window violation
2020-05-13, 09:47:19	Warning (5)	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:47:18	Warning (5)	Dynamic Range Window violation
2020-05-13, 09:47:18	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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:47:09	Notice (6)	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:47:04	Warning (5)	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Notice (6)	Honoring MDD; IP provisioning mode = IPv4
Time Not Established	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;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:71:eb:38;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2020-05-13, 09:38:13	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;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:71:eb:38;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
2020-05-12, 22:43:13	Critical (3)	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;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:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;
Time Not Established	Critical (3)	UCD invalid or channel unusable;CM-MAC=38:94:ed:71:eb:38;CMTS-MAC=00:76:86:45:11:5e;CM-QOS=1.1;CM-VER=3.1;

FURRYe38
May 13, 2020
Have the ISP check the signal and line quality UP to the modem.
Be sure there are no coax cable line splitters in the between the modem and ISP service box.
Be sure your using good quality RG6 coax cable up to the modem.

Forum Discussion

FCM1100 : Frequent disconnect from internet with Optimum using Netgear CM1100 modem.

3 Replies