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Taylor14
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High Latency and t3 timeouts

Hi Im currently running my super hub 3 in modem mode but there is constant fluctuations in latency, looking at my network status I see a large number of T3 timeouts can anyone confirm the issue.   

Network Log

Time Priority Description

07/09/2019 10:19:41ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=;CMTS-MAC=00;CM-QOS=1.1;CM-VER=3.0;
07/09/2019 20:02:27criticalNo Ranging Response received - T3 time-out;CM-MAC=cb;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
07/09/2019 21:05:46ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=cb;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
08/09/2019 00:41:11ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
08/09/2019 00:41:11noticeDHCP Renew - lease parameters tftp file-V03b070232460788a.cm modified;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
08/09/2019 08:29:56criticalNo Ranging Response received - T3 time-out;CM-MAC=cb;CMTS-MAC=0;CM-QOS=1.1;CM-VER=3.0;
11/09/2019 09:48:38ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=c;CMTS-MAC=0;CM-QOS=1.1;CM-VER=3.0;
11/09/2019 10:23:14criticalNo Ranging Response received - T3 time-out;CM-MAC=b;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
11/09/2019 20:52:24ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=c;CMTS-MAC=0;CM-QOS=1.1;CM-VER=3.0;
12/09/2019 07:56:12ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=cb;CMTS-MAC=00;CM-QOS=1.1;CM-VER=3.0;
12/09/2019 07:56:12noticeDHCP Renew - lease parameters tftp file-V03b070232460788a.cm modified;CM-MAC=-MAC=CM-QOS=1.1;CM-VER=3.0;
14/09/2019 05:52:48criticalNo Ranging Response received - T3 time-out;CM-MAC=c;CMTS-MAC=00;CM-QOS=1.1;CM-VER=3.0;
16/09/2019 14:12:6ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=cb;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
16/09/2019 19:14:37criticalNo Ranging Response received - T3 time-out;CM-MAC=cCMTS-MAC=0;CM-QOS=1.1;CM-VER=3.0;
17/09/2019 04:08:49ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=;CMTS-MAC=00;CM-QOS=1.1;CM-VER=3.0;
17/09/2019 08:08:23criticalNo Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
17/09/2019 11:07:11ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=cCMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
17/09/2019 18:05:35ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=cb;CMTS-MAC=0b0;CM-QOS=1.1;CM-VER=3.0;
17/09/2019 18:05:35noticeDHCP Renew - lease parameters tftp file-V03b070232460788a.cm modified;CM-MAC=b;CMTS-MAC=0;CM-QOS=1.1;CM-VER=3.0;
19/09/2019 02:23:8criticalNo Ranging Response received - T3 time-out;CM-MAC=c;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;

 

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1393999914.325512064 qam2
2258000294.325512016 qam4
3326000194.325512064 qam3
4462000244.325512064 qam1

 

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

 

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

16750000002.738256 qam30
2459000000338256 qam7
34670000003.238256 qam8
4475000000338256 qam9
5483000000338256 qam10
6491000000338256 qam11
74990000003.238256 qam12
85070000002.538256 qam13
95150000002.738256 qam14
10523000000338256 qam15
115310000002.738256 qam16
125390000002.738256 qam17
13547000000338256 qam18
145550000002.738256 qam19
15563000000338256 qam20
165710000002.940256 qam21
175790000002.738256 qam22
185870000002.238256 qam23
195950000002.540256 qam24
20635000000238256 qam25
216430000002.538256 qam26
226510000002.540256 qam27
236590000002.540256 qam28
246670000002.738256 qam29

 

 

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Taylor14
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Re: High Latency and t3 timeouts


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 38.9 4283 0
2 Locked 38.9 2422 0
3 Locked 38.6 2229 0
4 Locked 38.6 2272 0
5 Locked 38.9 2116 0
6 Locked 38.6 2140 0
7 Locked 38.9 2585 0
8 Locked 38.9 2544 0
9 Locked 38.9 2650 0
10 Locked 38.9 2549 0
11 Locked 38.9 2864 0
12 Locked 38.9 2693 0
13 Locked 38.9 3112 0
14 Locked 38.9 2785 0
15 Locked 38.9 3137 0
16 Locked 40.3 3159 0
17 Locked 38.9 2814 0
18 Locked 38.9 3574 0
19 Locked 40.3 2996 0
20 Locked 38.9 4362 0
21 Locked 38.9 3286 0
22 Locked 40.3 3158 0
23 Locked 40.3 4108 0
24 Locked 38.9 4162 0
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Forum Team
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Re: High Latency and t3 timeouts

Hi Taylor14,

 

Thanks for posting and welcome to the community.

 

I've ran a check and there are no issues currently showing, has everything been sorted?

 

Please let me know if you need anything further.

Kind regards,

John_GS
Forum Team

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Taylor14
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Re: High Latency and t3 timeouts

Im still getting issues, I can't pinpoint the issue its inconsistent sometimes I will have a stable connection other times I will have really high latency 

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