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Riareth
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High latency and drops

I've been having high latency issues and drop connections connections on my broadband for a few weeks. Most of the time I don't really notice anything wrong, but for the past week it has been affecting connecting to work via citrix.

Yesterday afternoon (22 Feb) was particular bad. When it happened I did a few speed tests and for the first time I noticed that the upload was really bad, 0.1 to 1 mbps while upload was 300+After a couple of hours it came back to normal ( 300+/30+ mbps)

Here's a few BQM graphs

Feb 15Feb 15Feb 21Feb 21Feb 22Feb 22Feb 23Feb 23

 

Here's the network status for the router this morning

Cable Modem Status

ItemStatusComments
Acquired Downstream Channel (Hz)
298750000
Locked
Ranged Upstream Channel (Hz)
60300017
Locked
Provisioning State
Online
 

 

Downstream bonded channels

 

ChannelFrequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID
12987500005.438256 qam21
2138750000938256 qam1
31467500008.638256 qam2
41547500008.538256 qam3
5162750000838256 qam4
61707500008.138256 qam5
71787500007.938256 qam6
81867500007.638256 qam7
91947500007.440256 qam8
102027500007.138256 qam9
11210750000738256 qam10
122187500006.840256 qam11
132267500006.640256 qam12
142347500006.538256 qam13
152427500006.438256 qam14
162507500006.440256 qam15
172587500006.140256 qam16
18266750000638256 qam17
192747500005.640256 qam18
202827500005.538256 qam19
212907500005.438256 qam20
223067500005.538256 qam22
233147500005.538256 qam23
243227500005.540256 qam24



Downstream bonded channels

 

ChannelLocked StatusRxMER (dB)Pre RS ErrorsPost RS Errors
1Locked38.6420
2Locked38.9150
3Locked38.9250
4Locked38.9280
5Locked38.9360
6Locked38.9150
7Locked38.9190
8Locked38.9140
9Locked40.3160
10Locked38.990
11Locked38.9160
12Locked40.3310
13Locked40.3300
14Locked38.9380
15Locked38.9190
16Locked40.3170
17Locked40.3170
18Locked38.9190
19Locked40.3240
20Locked38.9300
21Locked38.9390
22Locked38.9440
23Locked38.9450
24Locked40.3570

 

Upstream bonded channels

ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID
16030001735512064 qam1
23940000035512064 qam4
34620000035512064 qam3
45370000035512064 qam2



Upstream bonded channels

Channel Channel Type T2 Timeouts T3 Timeouts T4 Timeouts

ChannelChannel Type

T1
Timeouts

T2
Timeouts

T3
Timeouts
T4
Timeouts
1ATDMA0000
2ATDMA0000
3ATDMA0010
4ATDMA0010

 

Network Log

TimePriorityDescription
23/02/2021 10:44:36noticeLAN login Success;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/02/2021 06:41:57criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/02/2021 12:43:25noticeLAN login Success;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/02/2021 17:35:22criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/02/2021 15:46:27noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062+voc-b.cm modified;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/02/2021 15:46:27ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/02/2021 19:34:42criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/02/2021 09:52:40noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062+voc-b.cm modified;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/02/2021 09:52:40ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/02/2021 02:25:36criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/02/2021 02:25:35criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/02/2021 02:47:37criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/02/2021 02:47:37criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/02/2021 02:46:15criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/02/2021 02:46:15criticalUnicast Ranging Received Abort Response - initializing MAC;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 21:22:28criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 08:40:13noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062+voc-b.cm modified;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/02/2021 08:40:13ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/02/2021 00:20:55criticalNo Ranging Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/02/2021 00:20:52Warning!B-INIT-RNG Failure - Retries exceeded;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

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