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Retired_Member's avatar
Retired_Member
Mar 10, 2023

CBR750 - Downstream light blinking

hey all, 

Just got an Orbi CBR750 the other day and had comcast come in and replace all the lines. I'm seeing my downstream light continuously blink. Any troubleshooting advice would be greatly appreciated. 

Firmware:
V4.6.14.4_2.3.12

Connection:

Status: Poor

 

Internet Access: Good

Downstream Status: Poor

Partial Service: Poor
Cable modem is in partial service mode. Your service provider might be under maintenance. Most of the time it won't affect your traffic and will automatically clear when work is complete.

Downstream Power Level: Good

Downstream SNR: Good

Upstream Status: Good

Upstream Power Level: Good

 

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel507000000 HzLocked
Connectivity StateOkOperational
Boot StateOkOperational
SecurityEnabledBPI+
IP Provisioning ModeHonor MDDhonorMdd(4)

Downstream Bonded Channels Partial Service
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectable
1LockedQAM 2564405000000 Hz2.7 dBmV37.6 dB100
2LockedQAM 2565411000000 Hz2.9 dBmV37.6 dB00
3LockedQAM 2566417000000 Hz3.2 dBmV37.6 dB10
4LockedQAM 2567423000000 Hz3.2 dBmV37.3 dB00
5LockedQAM 2568429000000 Hz3.5 dBmV37.6 dB00
6LockedQAM 2569435000000 Hz3.5 dBmV38.6 dB00
7LockedQAM 25610441000000 Hz3.7 dBmV37.6 dB00
8LockedQAM 25611447000000 Hz4.0 dBmV37.6 dB00
9LockedQAM 25612453000000 Hz4.3 dBmV38.6 dB00
10LockedQAM 25613459000000 Hz4.3 dBmV37.6 dB00
11LockedQAM 25614465000000 Hz4.1 dBmV37.6 dB00
12LockedQAM 25615471000000 Hz4.3 dBmV38.6 dB00
13LockedQAM 25616477000000 Hz4.5 dBmV37.6 dB00
14LockedQAM 25617483000000 Hz4.8 dBmV37.6 dB00
15LockedQAM 25618489000000 Hz4.9 dBmV38.6 dB00
16LockedQAM 25619495000000 Hz4.8 dBmV38.6 dB00
17LockedQAM 25620507000000 Hz4.9 dBmV37.6 dB70
18LockedQAM 25621513000000 Hz5.1 dBmV38.6 dB00
19LockedQAM 25622519000000 Hz5.4 dBmV38.6 dB00
20LockedQAM 25623525000000 Hz5.4 dBmV38.9 dB00
21LockedQAM 25624531000000 Hz5.1 dBmV38.6 dB00
22LockedQAM 25625543000000 Hz5.4 dBmV38.6 dB00
23LockedQAM 25626549000000 Hz5.4 dBmV38.6 dB00
24LockedQAM 25627555000000 Hz5.5 dBmV37.6 dB00
25LockedQAM 25628561000000 Hz5.5 dBmV38.6 dB00
26LockedQAM 25629567000000 Hz5.5 dBmV38.6 dB00
27LockedQAM 25630573000000 Hz5.5 dBmV38.6 dB00
28LockedQAM 25631579000000 Hz5.4 dBmV38.6 dB00
29LockedQAM 25632585000000 Hz5.6 dBmV38.6 dB00
30LockedQAM 25633591000000 Hz5.9 dBmV38.6 dB00
31LockedQAM 25634597000000 Hz5.9 dBmV38.9 dB00
32Not LockedN/AN/A0 Hz0.0 dBmV0.0 dB00

Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA15120 Ksym/sec16400000 Hz47.8 dBmV
2LockedATDMA25120 Ksym/sec22800000 Hz46.8 dBmV
3LockedATDMA35120 Ksym/sec29200000 Hz46.3 dBmV
4LockedATDMA45120 Ksym/sec35600000 Hz46.3 dBmV
5Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
6Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
7Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
8Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV

Downstream OFDM Channels
ChannelLock StatusModulation/Profile IDChannel IDFrequencyPowerSNR/MERActive Subcarrier
Number Range
Unerrored
Codewords
Correctable
Codewords
Uncorrectable
Codewords
1Locked048-2800000 Hz13.5 dBmV0.0 dB0~0000
2Not Locked000 Hz0.0 dBmV0.0 dB0~4095000

Upstream OFDMA Channels
ChannelLock StatusModulation/Profile IDChannel IDFrequencyPower
1Not Locked000 Hz0.0 dBmV
2Not Locked000 Hz0.0 dBmV

Current System Time: Thu Mar 9 18:33:45 2023
System Up Time 00:43:54



Event Log

TimePriorityDescription
Mar 08 2023 20:18:01Notice (6)TLV-11 - unrecognized OID
Mar 08 2023 20:18:01Notice (6)TLV-11 - unrecognized OID
Mar 08 2023 20:18:01Notice (6)TLV-11 - unrecognized OID
Mar 08 2023 20:18:01Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 08 2023 20:18:11Warning (5)RCS Partial Service
Mar 08 2023 20:18:19Alert (2)CM Certificate Error
Mar 09 2023 07:16:43Critical (3)No Ranging Response received - T3 time-out
Mar 09 2023 12:32:18Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Mar 09 2023 12:32:18Notice (6)TLV-11 - unrecognized OID
Mar 09 2023 12:32:18Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 09 2023 12:32:28Warning (5)RCS Partial Service
Mar 09 2023 12:32:36Alert (2)CM Certificate Error
Mar 09 2023 12:37:40Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Mar 09 2023 12:37:40Notice (6)TLV-11 - unrecognized OID
Mar 09 2023 12:37:40Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 09 2023 12:37:50Warning (5)RCS Partial Service
Mar 09 2023 12:37:59Alert (2)CM Certificate Error
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Mar 09 2023 16:44:16Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Mar 09 2023 16:44:16Notice (6)TLV-11 - unrecognized OID
Mar 09 2023 16:44:16Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 09 2023 16:44:26Warning (5)RCS Partial Service
Mar 09 2023 16:44:34Alert (2)CM Certificate Error
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Mar 09 2023 17:11:38Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Mar 09 2023 17:11:38Notice (6)TLV-11 - unrecognized OID
Mar 09 2023 17:11:38Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 09 2023 17:11:48Warning (5)RCS Partial Service
Mar 09 2023 17:11:56Alert (2)CM Certificate Error
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Mar 09 2023 17:35:12Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Mar 09 2023 17:35:13Notice (6)TLV-11 - unrecognized OID
Mar 09 2023 17:35:13Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 09 2023 17:35:22Warning (5)RCS Partial Service
Mar 09 2023 17:35:31Notice (6)CM-STATUS message sent. Event Type Code: 5
Mar 09 2023 17:35:31Alert (2)CM Certificate Error
Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
Mar 09 2023 17:51:11Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Mar 09 2023 17:51:11Notice (6)TLV-11 - unrecognized OID
Mar 09 2023 17:51:11Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
Mar 09 2023 17:51:21Warning (5)RCS Partial Service
Mar 09 2023 17:51:29Alert (2)CM Certificate Error

5 Replies

  • Please post a copy and paste of the modems event log page.
    https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router

     

     

    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. 
    Start with removing any amplifiers, signal attenuators, or splitters from the coax.
    From there check the line for kinks, damage, moisture in the line.
    Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
    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#M12853
    https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
    https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

    • Retired_Member's avatar
      Retired_Member

      Here's a fresh one

      TimePriorityDescription
      Mar 08 2023 20:18:01Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 08 2023 20:18:01Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 08 2023 20:18:01Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 08 2023 20:18:01Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 08 2023 20:18:11Warning (5)RCS Partial Service
      Mar 08 2023 20:18:19Alert (2)CM Certificate Error
      Mar 09 2023 07:16:43Critical (3)No Ranging Response received - T3 time-out
      Mar 09 2023 12:32:18Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
      Mar 09 2023 12:32:18Notice (6)TLV-11 - unrecognized OID
      Mar 09 2023 12:32:18Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 09 2023 12:32:28Warning (5)RCS Partial Service
      Mar 09 2023 12:32:36Alert (2)CM Certificate Error
      Mar 09 2023 12:37:40Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
      Mar 09 2023 12:37:40Notice (6)TLV-11 - unrecognized OID
      Mar 09 2023 12:37:40Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 09 2023 12:37:50Warning (5)RCS Partial Service
      Mar 09 2023 12:37:59Alert (2)CM Certificate Error
      Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
      Mar 09 2023 16:44:16Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
      Mar 09 2023 16:44:16Notice (6)TLV-11 - unrecognized OID
      Mar 09 2023 16:44:16Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 09 2023 16:44:26Warning (5)RCS Partial Service
      Mar 09 2023 16:44:34Alert (2)CM Certificate Error
      Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
      Mar 09 2023 17:11:38Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
      Mar 09 2023 17:11:38Notice (6)TLV-11 - unrecognized OID
      Mar 09 2023 17:11:38Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 09 2023 17:11:48Warning (5)RCS Partial Service
      Mar 09 2023 17:11:56Alert (2)CM Certificate Error
      Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
      Mar 09 2023 17:35:12Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
      Mar 09 2023 17:35:13Notice (6)TLV-11 - unrecognized OID
      Mar 09 2023 17:35:13Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 09 2023 17:35:22Warning (5)RCS Partial Service
      Mar 09 2023 17:35:31Notice (6)CM-STATUS message sent. Event Type Code: 5
      Mar 09 2023 17:35:31Alert (2)CM Certificate Error
      Time Not EstablishedCritical (3)No Ranging Response received - T3 time-out
      Mar 09 2023 17:51:11Warning (5)MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
      Mar 09 2023 17:51:11Notice (6)TLV-11 - unrecognized OID
      Mar 09 2023 17:51:11Critical (3)Config File Rejected due to Invalid or Unexpected TLV 11
      Mar 09 2023 17:51:21Warning (5)RCS Partial Service
      Mar 09 2023 17:51:29Alert (2)CM Certificate Error
      Mar 10 2023 10:21:39Critical (3)No Ranging Response received - T3 time-out
      • FURRYe38's avatar
        FURRYe38
        Guru

        Ya theres line issues here. The ISP needs to review all Alerts, Criticals and Warnings and resolve them.