Hello. I am using a Nighthawk CM2000 router (which, BTW, is not a listed model for the model dropdown) connected to a Nighthawk AX4 router. Periodically the downstream light on the modem starts blinking white ("modem is scanning for a downstream channel"), and the only way to get it to stop blinking and stay on steadily is to restart the modem. The thing is, though, even while the light is blinking the WiFi connection seems to be unaffected. In fact it is blinking now while I'm online here and typing this message. I even ran a Speedtest.net test while the light was blinking and got some of the fastest speeds I have so far obtained with this router (see below). My question is, can I safely ignore this blinking light, or should I reboot the modem every time it happens? Thanks all! --Howard

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. 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. Be sure your using good quality RG6 coax cable up to the modem. Be sure to power OFF the modem for 1 minute them back ON.https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853

Thank you for the response. Below is a copy of the "modem event log." Is this the info you requested? I have been often in touch with RCN and the modem has been "reprovisioned" several times. Also, I have had (and paid for) three service calls. This first time the tech replaced the connectors at the ends of the cable, and removed one splitter her found in the line. The subsequent visits found the signal to be within spec, and the tech stated that since I had my own modem that was all they could do since they did not support customer-owned modems. Tue Jul 06 06:09:00 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Mon Jul 05 01:45:51 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Mon Jul 05 01:45:26 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Mon Jul 05 01:21:01 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Mon Jul 05 01:20:36 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jul 02 18:09:00 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jul 02 09:17:21 2021 (Critical (3)) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Tue Jun 29 06:09:00 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Sat Jun 26 23:09:53 2021 (Critical (3)) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:08 2021 (Warning (5)) REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:06 2021 (Notice (6)) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Notice (6)) TLV-11 - unrecognized OID;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.7;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.6;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.5;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.4;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.3;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.2;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.1;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 18:09:01 2021 (Warning (5)) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Time Not Established (Notice (6)) Honoring MDD; IP provisioning mode = IPv4Time Not Established (Critical (3)) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;Fri Jun 25 09:41:52 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:50:57 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:50:32 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:50:24 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:49:39 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:48:08 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:45:39 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:44:13 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:43:31 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:19:00 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:18:33 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:16:43 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:15:39 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:14:55 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:14:02 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;Thu Jun 24 17:13:34 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;

Please post a copy and paste of the modems connection status page.

Cable Connection Frequency start ValueThis 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 ProcedureProcedure Status Comment Acquire Downstream Channel603000000 HzLockedConnectivity StateOKOperationalBoot StateOKOperationalSecurityEnabledBPI+ Downstream Bonded ChannelsChannel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1LockedQAM25610603000000 Hz-3.2 dBmV42.0 dB002LockedQAM2561549000000 Hz-0.8 dBmV43.4 dB003LockedQAM2562555000000 Hz-1.7 dBmV42.7 dB004LockedQAM2563561000000 Hz-2.8 dBmV42.3 dB005LockedQAM2564567000000 Hz-2.7 dBmV42.3 dB006LockedQAM2565573000000 Hz-1.1 dBmV42.4 dB007LockedQAM2566579000000 Hz-1.1 dBmV42.5 dB008LockedQAM2567585000000 Hz-1.2 dBmV42.6 dB009LockedQAM2568591000000 Hz-1.9 dBmV41.1 dB0010LockedQAM2569597000000 Hz-2.1 dBmV42.0 dB0011LockedQAM25611609000000 Hz-3.0 dBmV41.9 dB0012LockedQAM25612615000000 Hz-2.3 dBmV41.9 dB0013LockedQAM25613621000000 Hz-2.8 dBmV41.9 dB0014LockedQAM25614627000000 Hz-4.0 dBmV41.4 dB0015LockedQAM25615633000000 Hz-3.3 dBmV41.3 dB0016LockedQAM25616639000000 Hz-2.6 dBmV41.8 dB0017Not LockedUnknown00 Hz0.0 dBmV0.0 dB0018Not LockedUnknown00 Hz0.0 dBmV0.0 dB0019Not LockedUnknown00 Hz0.0 dBmV0.0 dB0020Not LockedUnknown00 Hz0.0 dBmV0.0 dB0021Not LockedUnknown00 Hz0.0 dBmV0.0 dB0022Not LockedUnknown00 Hz0.0 dBmV0.0 dB0023Not LockedUnknown00 Hz0.0 dBmV0.0 dB0024Not LockedUnknown00 Hz0.0 dBmV0.0 dB0025Not LockedUnknown00 Hz0.0 dBmV0.0 dB0026Not LockedUnknown00 Hz0.0 dBmV0.0 dB0027Not LockedUnknown00 Hz0.0 dBmV0.0 dB0028Not LockedUnknown00 Hz0.0 dBmV0.0 dB0029Not LockedUnknown00 Hz0.0 dBmV0.0 dB0030Not LockedUnknown00 Hz0.0 dBmV0.0 dB0031Not LockedUnknown00 Hz0.0 dBmV0.0 dB0032Not LockedUnknown00 Hz0.0 dBmV0.0 dB00 Upstream Bonded ChannelsChannel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1LockedATDMA1512036800000 Hz42.8 dBmV2LockedATDMA2512030350000 Hz42.3 dBmV3LockedATDMA3512023900000 Hz41.3 dBmV4Not LockedUnknown000 Hz0.0 dBmV5Not LockedUnknown000 Hz0.0 dBmV6Not LockedUnknown000 Hz0.0 dBmV7Not LockedUnknown000 Hz0.0 dBmV8Not LockedUnknown000 Hz0.0 dBmV Downstream OFDM ChannelsChannel LockStatus Modulation /Profile ID ChannelID Frequency Power SNR /MER Active SubcarrierNumber Range UnerroredCodewords CorrectableCodewords UncorrectableCodewords 1Locked0 ,1 ,2 ,3159657000000 Hz-1.7 dBmV41.2 dB646 ~ 3449635832388591495773400702Not Locked000 Hz0 dBmV0.0 dB0 ~ 4095000 Upstream OFDMA ChannelsChannel Lock Status Modulation / Profile ID Channel ID Frequency Power 1Not Locked000 Hz0 dBmV2Not Locked000 Hz0 dBmV Extended Upstream Transmit Power Current System Time:Tue Jul 06 17:29:39 2021System Up Time:10 days 23:21:11

I am trying but when I copy the table and paste it here it says the table has HTML errors. It also says it will correct the errors for me, but when I accept and try to repost nothing appears. Can you suggest how I can post the status page?

CM2000 Modem: blinking downstream light

20 Replies

FURRYe38
Guru
Jul 06, 2021
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. 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.
Be sure your using good quality RG6 coax cable up to the modem.
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
- HGinDC
  Guide
  Jul 06, 2021
  Thank you for the response. Below is a copy of the "modem event log." Is this the info you requested? I have been often in touch with RCN and the modem has been "reprovisioned" several times. Also, I have had (and paid for) three service calls. This first time the tech replaced the connectors at the ends of the cable, and removed one splitter her found in the line. The subsequent visits found the signal to be within spec, and the tech stated that since I had my own modem that was all they could do since they did not support customer-owned modems.
  
  Tue Jul 06 06:09:00 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Mon Jul 05 01:45:51 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Mon Jul 05 01:45:26 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Mon Jul 05 01:21:01 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Mon Jul 05 01:20:36 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jul 02 18:09:00 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jul 02 09:17:21 2021 (Critical (3)) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Tue Jun 29 06:09:00 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Sat Jun 26 23:09:53 2021 (Critical (3)) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:08 2021 (Warning (5)) REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:06 2021 (Notice (6)) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Notice (6)) TLV-11 - unrecognized OID;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.7;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.6;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.5;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.4;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.3;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.2;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Error (4)) Missing BP Configuration Setting TLV Type: 17.1;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 18:09:01 2021 (Warning (5)) DHCP WARNING - Non-critical field invalid in response ;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Time Not Established (Notice (6)) Honoring MDD; IP provisioning mode = IPv4
  Time Not Established (Critical (3)) SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
  Fri Jun 25 09:41:52 2021 (Error (4)) DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:50:57 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:50:32 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:50:24 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:49:39 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:48:08 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:45:39 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:44:13 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:43:31 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:19:00 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:18:33 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:16:43 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:15:39 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:14:55 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:14:02 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  Thu Jun 24 17:13:34 2021 (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=08:36:c9:9f:5e:a8;CMTS-MAC=00:af:1f:1f:85:5e;CM-QOS=1.1;CM-VER=3.1;
  - FURRYe38
    Guru
    Jul 06, 2021
    Please post a copy and paste of the modems connection status page.
- Rcanne
  Aspirant
  Nov 18, 2021
  I also suffer from the same situation on the Nighthawk CM2000 (Blinking downstream light,) and have tried everything that is offered to correct the problem with no results. I restart the modem and typically within days, if not hours the problem is back. The longest it has stayed solid is about a week. Like others have reported the modem seems to be functioning normally; speed is as expected. So, my question is hopefully simple to answer, should I stop concerning myself with the blinking downstream light, and just let it blink? No need to get technical please, just a straight forward "YES" or "NO" would be greatly appreciated.
  - FURRYe38
    Guru
    Nov 18, 2021
    https://community.netgear.com/t5/Cable-Modems-Routers/CM2000-Modem-blinking-downstream-light/m-p/2164538/highlight/true#M34628
    
    Rcanne wrote:
    
    I also suffer from the same situation on the Nighthawk CM2000 (Blinking downstream light,) and have tried everything that is offered to correct the problem with no results. I restart the modem and typically within days, if not hours the problem is back. The longest it has stayed solid is about a week. Like others have reported the modem seems to be functioning normally; speed is as expected. So, my question is hopefully simple to answer, should I stop concerning myself with the blinking downstream light, and just let it blink? No need to get technical please, just a straight forward "YES" or "NO" would be greatly appreciated.

Forum Discussion

CM2000 Modem: blinking downstream light