Forum Discussion

AlanOHara's avatar
AlanOHara
Tuning in
25 days ago

Lots of T3 timeout errors

Hi I am getting lots of T3 timeout errors on my hub 4, here are the logs:

3.0 Downstream channels

ChannelFrequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID
25331000000-6.70000135.779911QAM25625
1139000000-6.00000035.083549QAM2561
2147000000-6.70000135.595078QAM2562
4163000000-7.40000234.925610QAM2564
5171000000-7.50000035.595078QAM2565
6179000000-7.70000135.595078QAM2566
7187000000-8.00000035.083549QAM2567
8195000000-8.29999935.083549QAM2568
9203000000-6.50000035.595078QAM2569
10211000000-5.70000135.779911QAM25610
11219000000-6.00000035.595078QAM25611
12227000000-6.00000035.595078QAM25612
13235000000-6.00000035.779911QAM25613
14243000000-6.00000035.779911QAM25614
15251000000-6.20000135.595078QAM25615
16259000000-5.90000235.779911QAM25616
17267000000-6.29999935.779911QAM25617
18275000000-6.70000135.595078QAM25618
19283000000-7.20000135.595078QAM25619
20291000000-8.29999935.595078QAM25620
21299000000-8.70000135.083549QAM25621
22307000000-7.00000035.595078QAM25622
23315000000-6.70000135.779911QAM25623
24323000000-6.50000035.779911QAM25624
26339000000-6.50000035.779911QAM25626
27347000000-6.20000135.779911QAM25627
28355000000-6.09999835.779911QAM25628
29363000000-6.09999835.779911QAM25629
30371000000-6.09999835.779911QAM25630
31379000000-6.20000135.779911QAM25631
32387000000-6.20000136.386890QAM25632



3.0 Downstream channels

ChannelLock StatusRxMER (dB)Pre RS ErrorsPost RS Errors
25Locked35.77991100
1Locked35.08354900
2Locked35.59507800
4Locked34.92561000
5Locked35.59507800
6Locked35.59507800
7Locked35.08354900
8Locked35.08354900
9Locked35.59507800
10Locked35.77991100
11Locked35.59507800
12Locked35.59507800
13Locked35.77991100
14Locked35.77991100
15Locked35.59507800
16Locked35.77991100
17Locked35.77991100
18Locked35.59507800
19Locked35.59507800
20Locked35.59507800
21Locked35.08354900
22Locked35.59507800
23Locked35.77991100
24Locked35.77991100
26Locked35.77991100
27Locked35.77991100
28Locked35.77991100
29Locked35.77991100
30Locked35.77991100
31Locked35.77991100
32Locked36.38689000



3.1 Downstream channels

ChannelChannel Width (MHz)FFT TypeNumber of Active SubcarriersModulation (Active Profile)First Active Subcarrier (Hz)
33964K1840QAM4096759



3.1 Downstream channels

Channel IDLock StatusRxMER Data (dB)PLC Power (dBmV)Correcteds (Active Profile)Uncorrectables (Active Profile)
33Locked38-4.316271557114

9 Replies

  • AlanOHara's avatar
    AlanOHara
    Tuning in
    25 days ago

    3.0 Upstream channels

    ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID
    13010000043.7705995120 KSym/sec64QAM4
    23660000043.7705995120 KSym/sec64QAM3
    34310000044.0205995120 KSym/sec64QAM2
    42360000043.7705995120 KSym/sec32QAM5
    54960000044.5205995120 KSym/sec64QAM1



    3.0 Upstream channels

    ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts
    1US_TYPE_ATDMA0000
    2US_TYPE_ATDMA0000
    3US_TYPE_ATDMA0000
    4US_TYPE_ATDMA0000
    5US_TYPE_ATDMA0000



    3.1 Upstream channels

    ChannelChannel Width (MHz)Power (dBmV)FFT TypeModulation
    610.448.12KQAM128



    3.1 Upstream channels

    ChannelChannel TypeNumber of Active SubcarriersFirst Active Subcarrier (Hz)T3 TimeoutsT4 Timeouts
    6OFDMA20853.4210
  • Adduxi's avatar
    Adduxi
    Very Insightful Person
    25 days ago

    Downstream power is too low, it should be above -6   Preferred range is -6 to +10    If you have an attenuator fitted, try removing it and check the power levels again.  Otherwise a VM tech will need to adjust those. 

  • AlanOHara's avatar
    AlanOHara
    Tuning in
    25 days ago

    Thanks for the reply, I'll remove the attenuator and check again

  • AlanOHara's avatar
    AlanOHara
    Tuning in
    25 days ago

    Removed the attenuator, here are the logs:

    3.0 Downstream channels

    ChannelFrequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID
    253310000004.19999736.609653QAM25625
    11390000004.30000335.779911QAM2561
    21470000003.70000135.595078QAM2562
    31550000003.20000135.779911QAM2563
    41630000003.09999835.779911QAM2564
    51710000003.09999835.779911QAM2565
    61790000003.00000035.595078QAM2566
    71870000002.59999835.779911QAM2567
    81950000002.20000135.779911QAM2568
    102110000004.69999736.609653QAM25610
    112190000004.59999836.609653QAM25611
    122270000004.40000236.386890QAM25612
    132350000004.19999736.386890QAM25613
    142430000004.30000336.386890QAM25614
    152510000004.30000335.779911QAM25615
    162590000004.50000036.609653QAM25616
    172670000004.09999836.609653QAM25617
    182750000003.70000136.609653QAM25618
    192830000003.40000236.386890QAM25619
    202910000002.40000235.779911QAM25620
    212990000002.00000035.595078QAM25621
    223070000003.50000036.386890QAM25622
    233150000004.09999836.386890QAM25623
    243230000004.40000236.609653QAM25624
    263390000004.09999836.609653QAM25626
    273470000004.80000336.609653QAM25627
    283550000004.90000236.609653QAM25628
    293630000004.59999836.386890QAM25629
    303710000004.80000336.386890QAM25630
    313790000004.59999836.609653QAM25631
    323870000004.90000236.386890QAM25632



    3.0 Downstream channels

    ChannelLock StatusRxMER (dB)Pre RS ErrorsPost RS Errors
    25Locked36.60965300
    1Locked35.77991100
    2Locked35.59507800
    3Locked35.77991100
    4Locked35.77991100
    5Locked35.77991100
    6Locked35.59507800
    7Locked35.77991100
    8Locked35.77991100
    10Locked36.60965300
    11Locked36.60965300
    12Locked36.38689000
    13Locked36.38689000
    14Locked36.38689000
    15Locked35.77991100
    16Locked36.60965300
    17Locked36.60965300
    18Locked36.60965300
    19Locked36.38689000
    20Locked35.77991100
    21Locked35.59507800
    22Locked36.38689000
    23Locked36.38689000
    24Locked36.60965300
    26Locked36.60965300
    27Locked36.60965300
    28Locked36.60965300
    29Locked36.38689000
    30Locked36.38689000
    31Locked36.60965300
    32Locked36.38689000



    3.1 Downstream channels

    ChannelChannel Width (MHz)FFT TypeNumber of Active SubcarriersModulation (Active Profile)First Active Subcarrier (Hz)
    33964K1840QAM4096759



    3.1 Downstream channels

    Channel IDLock StatusRxMER Data (dB)PLC Power (dBmV)Correcteds (Active Profile)Uncorrectables (Active Profile)
    33Locked396.588957130

     

  • AlanOHara's avatar
    AlanOHara
    Tuning in
    25 days ago

    3.0 Upstream channels

    ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID
    13010000042.5205995120 KSym/sec64QAM4
    23660000042.7705995120 KSym/sec64QAM3
    34960000043.2705995120 KSym/sec64QAM1
    44310000043.0205995120 KSym/sec64QAM2
    52360000042.5205995120 KSym/sec64QAM5



    3.0 Upstream channels

    ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts
    1US_TYPE_ATDMA0000
    2US_TYPE_ATDMA0000
    3US_TYPE_ATDMA0000
    4US_TYPE_ATDMA0000
    5US_TYPE_ATDMA0000



    3.1 Upstream channels

    ChannelChannel Width (MHz)Power (dBmV)FFT TypeModulation
    610.447.12KQAM128



    3.1 Upstream channels

    ChannelChannel TypeNumber of Active SubcarriersFirst Active Subcarrier (Hz)T3 TimeoutsT4 Timeouts
    6OFDMA20853.400
  • gitty's avatar
    gitty
    On our wavelength
    25 days ago

    At first glance, I thought the 3.1 upstream power was way too high, compared to the 3.0 upstream, but searching the forum, it looks like a display difference (bug'ish) in the hub 4's firmware. It is many dB higher than how hub 5 displays it. :-)

    Are you getting packet loss?

    • AlanOHara's avatar
      AlanOHara
      Tuning in
      25 days ago

      Hi gitty, thanks for the reply, not getting any packet loss, I have had one t3 error since removing the attenuator, I'll keep an eye on the network log and see how I go

      • Vikki_M's avatar
        Vikki_M
        Icon for Forum Team rankForum Team
        23 days ago

        Hi AlanOHara,

        Thanks for your post and welcome to our community. 

        Please ensure that the Hub location has good ventilation and there's nothing covering the Hub itself.

        Are you having any connection issues? If so, is this affecting devices connected via Ethernet, WiFi or both please?

        Does this affect multiple devices?

        Are you using any 3rd party networking equipment?

        Please pop back to us when you can. 

  • AlanOHara's avatar
    AlanOHara
    Tuning in
    22 days ago

    Hi Vikki_M thanks for the reply, the hub has good ventilation and there is nothing covering it. The T3 timeouts were not giving me any noticeable connection issues, I am not using any 3rd party equipment. Since I removed the attenuator 4 days ago I have had only one timeout error appear in the log.

    Network Log

    TimePriorityDescription
    Mon Nov
    17    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=[REMOVED]
    Sun Nov
    16    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Sun Nov
    16    		3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Sun Nov
    16    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=[REMOVED]
    Sat Nov
    15    		3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Sat Nov
    15    		5MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC[REMOVED]
    Sat Nov
    15    		3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Sat Nov
    15    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Fri Nov
    14    		3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Thu Nov
    13    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Wed Nov
    12    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Mon Nov
    10    		3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Sun Nov 4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Sun Nov 6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Fri Nov 3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Thu Nov 6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC[REMOVED]
    Thu Nov 4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Mon Nov 6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Sun Nov 4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Sun Nov 6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Sun Nov 3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Sat Nov 6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Sat Nov 3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Fri Oct
    31    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Fri Oct
    31    		3No Ranging Response received - T3 time-out;CM-MAC[REMOVED]
    Thu Oct
    30    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Wed Oct
    29    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=[REMOVED]
    Tue Oct
    28    		3Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=[REMOVED]
    Tue Oct
    28    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC[REMOVED]
    Mon Oct
    27    		5MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=[REMOVED]
    Thu Jan 3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Mon Oct
    27    		6SW download Successful - Via NMS
    Mon Oct
    27    		6SW Download INIT - Via NMS
    Sun Oct
    26    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Fri Oct
    24    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=[REMOVED]
    Thu Oct
    23    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Thu Oct
    23    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Thu Oct
    23    		6CM-STATUS message sent. Event Type Code: 24; Chan ID: 33; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC[REMOVED]
    Wed Oct
    22    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Wed Oct
    22    		6CM-STATUS message sent. Event Type Code: 24; Chan ID: 33; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=[REMOVED]
    Tue Oct
    21    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Sun Oct
    19    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Fri Oct
    17    		6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=[REMOVED]
    Fri Oct
    17    		3Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC[REMOVED]
    Thu Oct
    16    		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Tue Oct
    14    		3No Ranging Response received - T3 time-out;CM-MAC=[REMOVED]
    Mon Oct
    13    		6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=[REMOVED]
    Thu Oct 4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]
    Mon Oct 6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC[REMOVED]
    Sun Oct 4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=[REMOVED]