Latency and packet loss

[paulbain]

Hi,

Im seeing some latency and packet loss on my 500mb connection. As you can see from the graph it’s not horrendous but does cause issues on ms teams calls when I’m working from home. I had been setup in modem mode with a commercial router and ap’s so decided to go back into router mode to see if that was any better. So config is now router mode WiFi off and laptop connected directly on gig Ethernet. I would say looking at my graph and doing some tests it’s actually worse. Know people on here have had far worse graphs! Even so it does seem to be causing me issues on work meetings. Any ideas?

https://www.thinkbroadband.com/broadband/monitoring/quality/share/f5074f0691772c4ec3fb3d46b642fbac038a6fa5-30-01-2022

[Adduxi]

Post your power levels and network log as well please.  Your BQM is not bad really, I've seen a lot worse! 

I'm surprised your own router and AP's are not outperforming the Hub?  Maybe you should revisit your setup?

But as you have a wired connection, that's a moot point regardless.   We'll wait to see the Hub stats first.

[paulbain]

Thanks Adduxi,

My AP's certainly are out performing the VM hub.  Had seen something on here that there may be issues with Modem mode firmware so switched back to router mode to see if there was any difference... from a latency pov there is not. I am going to switch back to my own router soon.  Just wanted to make sure that there were no issues with my own equipment.

Before going back to router mode yesterday I did a pinhole rest also. The BQM I have posted is an example...but it has been slightly worse...cant post those due to me screwing up my bqm account!

Cable Modem Status Item Status Comments

Acquired Downstream Channel (Hz)	331000000	Locked
Ranged Upstream Channel (Hz)	60299969	Locked
Provisioning State	Online

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

1	331000000	2.2	38	256 qam	25
2	203000000	0.7	38	256 qam	9
3	211000000	0.7	38	256 qam	10
4	219000000	-0.9	38	256 qam	11
5	227000000	0	38	256 qam	12
6	235000000	-0.2	38	256 qam	13
7	243000000	-1.2	38	256 qam	14
8	251000000	-1.2	38	256 qam	15
9	259000000	-0.7	37	256 qam	16
10	267000000	1	38	256 qam	17
11	275000000	0.2	38	256 qam	18
12	283000000	-0.2	37	256 qam	19
13	291000000	1.2	38	256 qam	20
14	299000000	0.9	38	256 qam	21
15	307000000	0.4	38	256 qam	22
16	315000000	1.5	38	256 qam	23
17	323000000	1.5	38	256 qam	24
18	339000000	1.5	38	256 qam	26
19	347000000	1.7	38	256 qam	27
20	355000000	2.5	38	256 qam	28
21	363000000	0.7	38	256 qam	29
22	371000000	0.7	38	256 qam	30
23	379000000	1.2	38	256 qam	31
24	387000000	0.4	38	256 qam	32

Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1	Locked	38.9	37	0
2	Locked	38.6	2121	93
3	Locked	38.6	2976	20
4	Locked	38.6	64601	158
5	Locked	38.6	37750	65
6	Locked	38.6	6539	166
7	Locked	38.6	9949	289
8	Locked	38.6	1211	96
9	Locked	37.6	255	147
10	Locked	38.6	830	14
11	Locked	38.6	105	0
12	Locked	37.6	74	12
13	Locked	38.6	98	24
14	Locked	38.6	865	0
15	Locked	38.6	312	6
16	Locked	38.9	124	83
17	Locked	38.6	111	50
18	Locked	38.9	43	90
19	Locked	38.6	53	6
20	Locked	38.9	33	0
21	Locked	38.6	51	0
22	Locked	38.6	60	0
23	Locked	38.9	41	86
24	Locked	38.6	29	0

Upstream bonded channels

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

1	60299969	48.3	5120	64 qam	1
2	39400007	48	5120	64 qam	4
3	46199969	48.5	5120	64 qam	3
4	53700009	48.8	5120	64 qam	2

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	0	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	ca69834ncxv9873254k;fg87d

[paulbain]

Primary Downstream Service Flow

SFID	321
Max Traffic Rate	575000000
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	1531
Max Traffic Rate	38520000
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	16320
Scheduling Type	BestEffort

Network Log

Time Priority Description

30/01/2022 11:11:52	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/01/2022 04:08:26	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2022 14:59:17	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2022 14:47:48	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2022 14:39:43	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2022 14:36:45	notice	Unit has been restored to factory defaults from a software issued command;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/01/2022 14:27:41	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/01/2022 17:36:7	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/01/2022 10:53:38	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt053-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/01/2022 10:53:38	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2022 12:24:32	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2022 01:49:52	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/01/2022 22:53:37	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt053-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/01/2022 22:53:37	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2022 13:43:10	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2022 13:24:22	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt053-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2022 13:24:22	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2022 12:17:44	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/01/2022 18:35:20	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[Adduxi]

Stats look okay, apart from the PostRS errors and they may be historical?  If you reboot the Hub and keep an eye on these errors, they should be zero.  Any errors are usually indicative of noise on the circuit and will need a VM technician to locate the source and fix it.

[paulbain]

Hub uptime after a full factory reset is only 20hrs so those errors are recent...and old log (before reset) was full of them

[paulbain]

So if it does need a tech....what's the best route to get them to check?

[Adduxi]

Either phone in or wait here a day or two for a VM Mod to pick this up. 

[paulbain]

Hmm, think I’ll be waiting for a mod then, got through to a human once who told me to do a reboot and then lost the call. Have tried to call back and just get the automatic notification that nothing is wrong and I need to reboot my hub… guess what… makes no difference… and sorry not a rant at you Adduxi… know you are just a helpful community member, and you’ve been more than helpful 😀

[paulbain]

Still nothing from mods guess they are busy!

live bqm… packet loss not so bad but latency… guessing this may be more around over utilisation in my area? 
https://www.thinkbroadband.com/broadband/monitoring/quality/share/32a6576b1e8780bd66b65e06f8b3c95c93...