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latency - video call drops - no ranging response received

RTquestions
Tuning in

Hi

I have been getting short, frequent drops when on video calls over ethernet. From Hub 4 router I got into an 8 port switch to computer.

In the logs I am getting no ranging response received and DHCP renew warnings - any suggestions as to how I fix this?

Thanks

Network Log

Time Priority Description
Sat 07/01/2023 00:50:073No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 09/01/2023 00:02:494DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 09/01/2023 00:02:496DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 09/01/2023 02:56:343No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 10/01/2023 19:42:206US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 12/01/2023 12:02:494DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 12/01/2023 12:02:496DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 13/01/2023 07:31:273No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 15/01/2023 13:07:495MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 15/01/2023 13:08:035DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 15/01/2023 13:08:036US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 15/01/2023 22:45:563No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:06:165MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:06:325DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:06:326US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:22:035MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:22:175DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:22:176US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 10:52:253No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 16/01/2023 22:28:136US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 17/01/2023 11:22:553No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 19/01/2023 06:25:546US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 19/01/2023 13:32:233No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 19/01/2023 17:42:354DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 19/01/2023 17:42:356DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 20/01/2023 06:27:516US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 20/01/2023 14:02:113No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 21/01/2023 15:14:026US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 21/01/2023 15:35:443No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 21/01/2023 17:55:236US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 22/01/2023 08:17:553No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 23/01/2023 05:42:354DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 23/01/2023 05:42:356DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 23/01/2023 09:58:383No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 23/01/2023 17:22:446US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 24/01/2023 22:22:283No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 26/01/2023 17:42:354DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 26/01/2023 17:42:356DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 26/01/2023 21:51:533No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 28/01/2023 18:11:246US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 29/01/2023 07:40:463No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 30/01/2023 05:42:354DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 30/01/2023 05:42:356DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 01/02/2023 02:07:523No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
10 REPLIES 10

jbrennand
Very Insightful Person
Very Insightful Person
Post up the 2 pages of upstream and two of downstream, data - from the settings

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 2 on WiFi) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's & TP-Link Archer C64 WAP. On Volt 350Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.

3.0 Downstream channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
253310000007.240.9QAM25625
102110000009.340.9QAM25610
112190000009.240.9QAM25611
122270000008.940.4QAM25612
132350000008.540.4QAM25613
142430000007.840.9QAM25614
15251000000840.9QAM25615
162590000007.440.9QAM25616
172670000007.440.9QAM25617
182750000007.240.9QAM25618
19283000000740.9QAM25619
202910000006.840.4QAM25620
212990000007.140.4QAM25621
223070000007.540.4QAM25622
233150000007.640.4QAM25623
243230000007.740.9QAM25624
263390000007.340.4QAM25626
273470000007.240.4QAM25627
283550000006.740.4QAM25628
293630000006.740.4QAM25629
303710000006.440.4QAM25630
313790000006.240.4QAM25631
32387000000640.4QAM25632
333950000005.640.4QAM25633
344030000005.140.4QAM25634
354110000004.540.9QAM25635
36419000000440.4QAM25636
374270000004.840.4QAM25637
384350000004.840.4QAM25638
394430000004.840.4QAM25639
404510000004.340.4QAM25640


3.0 Downstream channels

Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors
25Locked40.94620900
10Locked40.94620900
11Locked40.94620900
12Locked40.36628700
13Locked40.36628700
14Locked40.94620900
15Locked40.94620900
16Locked40.94620900
17Locked40.94620900
18Locked40.94620900
19Locked40.94620900
20Locked40.36628700
21Locked40.36628700
22Locked40.36628700
23Locked40.36628700
24Locked40.94620900
26Locked40.36628700
27Locked40.36628700
28Locked40.36628700
29Locked40.36628700
30Locked40.36628700
31Locked40.36628700
32Locked40.36628700
33Locked40.36628700
34Locked40.36628700
35Locked40.94620900
36Locked40.36628700
37Locked40.36628700
38Locked40.36628700
39Locked40.36628700
40Locked40.36628700


3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
159964K1880QAM4096759


3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
159Locked423.1241333920

3.0 Upstream channels

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

130100000465120 KSym/sec64QAM4
223600000465120 KSym/sec64QAM5
336600000465120 KSym/sec64QAM3
443100000465120 KSym/sec64QAM2
549600000465120 KSym/sec64QAM1



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0000
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000
5US_TYPE_STDMA0000



3.1 Upstream channels

Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
610.040.82KQAM8


3.1 Upstream channels

Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
6OFDMA20053.900

jbrennand
Very Insightful Person
Very Insightful Person
Hub stats all seem fine to me.

All I can suggest is to replace all the ethernet cables to Cat6a and swap to a new unmanaged swith with 1GB ports - in case one of those elements has "failed".

May be worth setting up a BQM...

If you haven’t already, set up a free, secure and “offlsite” - “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts.

It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph”.

Click the lower link (Share Live Graph) then, click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see. On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OK

https://www.thinkbroadband.com/broadband/monitoring/quality

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 2 on WiFi) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's & TP-Link Archer C64 WAP. On Volt 350Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.

Many thanks for this - much appreciated 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/04b1411dfba8d76421ee7ee2ffeeb75ad2728db4

 

jbrennand
Very Insightful Person
Very Insightful Person
BQM not good - have you swapped out the switch and changed the ethernet cables?

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 2 on WiFi) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's & TP-Link Archer C64 WAP. On Volt 350Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.

Hi Thanks for your help with this.

Have swapped out cables and switch and latency on ethernet seems better at present - however WIFI has become difficult to join. Hub diagnostics also suggests there is an issue with WIFI.

I turned off router and also used reset button and this seemed to improve WIFI during the day. 

Main issue I have is getting Amazon dots to join - they seem to be connected from hub connected devices, but not detecting wireless signal. I have tried to disable channel optimisation and rename 2.4 and 5 channels, but this did not make a difference.