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Pear97's avatar
Pear97
Joining in
9 months ago

Hub 5 (Modem Mode) | Reboot because of - unknown

I've been having an issue for the past few months of my Hub 5 Restarting itself between 2-3am everyday without fail, I've got people who work through the night in my property and this is becoming a nuisance for them. I'm using the Hub 5 in Modem Mode for use with my own Unifi Equipment, however this issue happens in Router mode through the same time period as well, has anyone else encountered the same issue or knows of a workaround for it because I'm at the point now where I'm counting down the days I can switch ISP.

Download/Upload Speeds are pretty reliably around 1100-1150 Download and 105-110 Upload and all my Power Levels and SNR seems within DOCSIS spec (see below).

Firmeware Version on both Hub 5's I've used: LG-RDK_7.6.20-2306.5

The First Hub 5's Hardware revision being 1.1 and my latest one being 1.2.

3.0 Downstream channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
11390000000.338QAM 2561
21470000000.238QAM 2562
3227000000240QAM 25612
42350000001.840QAM 25613
52430000001.440QAM 25614
62510000001.140QAM 25615
72590000001.240QAM 25616
8267000000240QAM 25617
92750000002.441QAM 25618
102830000002.941QAM 25619
112910000003.341QAM 25620
122990000003.341QAM 25621
133070000003.541QAM 25622
143150000003.541QAM 25623
153230000003.741QAM 25624
163310000003.741QAM 25625
173390000004.141QAM 25626
183470000004.141QAM 25627
193550000003.241QAM 25628
20363000000341QAM 25629
21371000000341QAM 25630
223790000003.441QAM 25631
233870000003.241QAM 25632
243950000003.241QAM 25633
254030000003.341QAM 25634
264110000003.441QAM 25635
274190000003.541QAM 25636
284270000003.441QAM 25637
294350000003.641QAM 25638
304430000003.641QAM 25639
31451000000441QAM 25640

3.0 Downstream channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked3800
2Locked3800
3Locked4000
4Locked4000
5Locked4000
6Locked4000
7Locked4000
8Locked4000
9Locked4100
10Locked4100
11Locked4100
12Locked4100
13Locked4100
14Locked4100
15Locked4100
16Locked4100
17Locked4100
18Locked4100
19Locked4100
20Locked4100
21Locked4100
22Locked4100
23Locked4100
24Locked4100
25Locked4100
26Locked4100
27Locked4100
28Locked4100
29Locked4100
30Locked4100
31Locked4100

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
41944K1840QAM 40961108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
41Locked417.21482098460

 

Network Log

Time Priority Description
22-08-2024 15:35:18noticeGUI Login Status - Login Success from LAN interface
22-08-2024 14:50:06criticalNo Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 14:49:56criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 14:49:56criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 14:49:48criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 14:49:45criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 13:04:23noticeREGISTRATION COMPLETE - Waiting for Operational status
22-08-2024 13:04:19noticeUS profile assignment change. US Chan ID: 12; Previous Profile: 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 13:04:14noticeDS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 13:04:10noticeTLV-11 - unrecognized OID;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 13:04:08warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 13:04:06noticeHonoring MDD; IP provisioning mode = IPv4
22-08-2024 13:03:57criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 13:03:56criticalCable Modem Reboot because of - HW or Power-On Reset
22-08-2024 12:53:30criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 12:53:30criticalCable Modem Reboot because of - HW or Power-On Reset
22-08-2024 12:39:50criticalCable Modem Reboot because of - Erouter Mode Change
22-08-2024 12:39:50criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 02:06:51criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 02:06:50criticalCable Modem Reboot because of - unknown
22-08-2024 01:19:20criticalCable Modem Reboot because of - Reboot Timezone Change
22-08-2024 01:19:20criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 01:16:56criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 01:16:54criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 01:12:53criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 01:12:08criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 01:11:58criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
22-08-2024 01:11:57criticalCable Modem Reboot because of - pin-reset

 

4 Replies

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  • Pear97's avatar
    Pear97
    Joining in
    9 months ago

    Forgot to Include my Upstream Information:

    3.0 Upstream channels

    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
    049600000465120QAM 646
    14310000045.85120QAM 647
    23660000045.85120QAM 648
    33010000045.85120QAM 649
    42360000045.85120QAM 6410

    3.0 Upstream channels

    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
    0ATDMA0100
    1ATDMA0100
    2ATDMA0100
    3ATDMA0100
    4ATDMA0100

    3.1 Upstream channels

    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    1210.441.22KQAM 256

    3.1 Upstream channels

    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    12OFDMA2087400000030
  • Pear97's avatar
    Pear97
    Joining in
    9 months ago
    22-08-2024 01:11:57criticalCable Modem Reboot because of - pin-reset

    This was me dropping the hub back into Router Mode to test to see if the issue of it restarting because of unknown at 2-3am was modem mode exclusive, 

    Router Mode:

    22-08-2024 02:06:50criticalCable Modem Reboot because of - unknown

    it was not. ðŸ˜‚

    These issues first started when I got my service entry point moved, I've since had virgin back out to correct and re-do the outdoor cabling and provide me with a replacement Hub 5 (which has the same issue, so I don't know if it is the Hub, it is possible two hubs could fail, but less likely) - Doing this has improved the Packet Loss / DNS issue I was having but these reboots are slowly eating away at my patience. 

    Currently the firmware is sitting on 

    LG-RDK_7.6.20-2306.5
    I can't seem to find any people talking about anything newer, so I'm going to assume this is the latest version and its not a stuck update.
    • Alex_RM's avatar
      Alex_RM
      Icon for Forum Team rankForum Team
      9 months ago

      Hi Pear97,

      Thanks for posting, and sorry to hear you've had some connection issues. I've had a look at our side and can't see any problems. 

      Do you still have these issues when the hub is in router mode?

      Alex_Rm

  • Danbeasant's avatar
    Danbeasant
    Joining in
    9 months ago

    I am getting exactly the same issue, reboots around the same time as yours with "Cable Modem Reboot because of - unknown". Its been doing this for a week or two now. I also get similar errors when the Hub 5 is starting up. Same as you I have mine in modem mode, connected to my Ubiquiti router (UCG-Ultra), but it happens in router mode too.