frequent spikes of packet loss and interrupted connections

[toby995]

Hi,

I've been having issues with packet loss and interrupted connections over the past week, I've scoured the forums and tried a lot of troubleshooting with my router but nothing seems to have workedso far.

I set up the BQM thinkbroadband graph last night, here are the results:

The big red bar was me ressetting my router completely

edit: some info i should have provided

my router is the hub3 and this problem occurs both over ethernet and wifi

[toby995]

Here's the router logs as well:

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)	387000000	Locked
Ranged Upstream Channel (Hz)	53699993	Locked
Provisioning State	Online

Downstream bonded channels

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

1	387000000	5.1	40	256 qam	32
2	267000000	5	40	256 qam	17
3	275000000	4.8	40	256 qam	18
4	283000000	4.9	40	256 qam	19
5	291000000	4.5	40	256 qam	20
6	299000000	4.4	38	256 qam	21
7	307000000	4.6	40	256 qam	22
8	315000000	4.8	40	256 qam	23
9	323000000	4.5	38	256 qam	24
10	331000000	4.5	38	256 qam	25
11	339000000	5	38	256 qam	26
12	347000000	4.8	40	256 qam	27
13	355000000	4.6	38	256 qam	28
14	363000000	5.1	38	256 qam	29
15	371000000	5.6	40	256 qam	30
16	379000000	5.4	40	256 qam	31
17	395000000	5.5	40	256 qam	33
18	403000000	5.3	40	256 qam	34
19	411000000	5	38	256 qam	35
20	419000000	5	38	256 qam	36
21	427000000	5.1	40	256 qam	37
22	435000000	4.5	40	256 qam	38
23	443000000	4.5	38	256 qam	39
24	451000000	5	38	256 qam	40

Downstream bonded channels

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

1	Locked	40.3	4	0
2	Locked	40.9	6	0
3	Locked	40.3	4	0
4	Locked	40.3	6	0
5	Locked	40.3	5	0
6	Locked	38.9	6	0
7	Locked	40.3	6	0
8	Locked	40.3	6	0
9	Locked	38.9	12	0
10	Locked	38.9	7	0
11	Locked	38.9	12	0
12	Locked	40.3	6	0
13	Locked	38.9	8	0
14	Locked	38.9	6	0
15	Locked	40.3	8	0
16	Locked	40.3	5	0
17	Locked	40.3	5	0
18	Locked	40.3	9	0
19	Locked	38.9	6	0
20	Locked	38.9	8	0
21	Locked	40.3	4	0
22	Locked	40.9	19	0
23	Locked	38.9	4	0
24	Locked	38.9	0	0

Upstream bonded channels

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

1	53699993	44	5120	64 qam	6
2	39399996	44	5120	64 qam	8
3	46200004	44	5120	64 qam	7
4	60300000	44	5120	64 qam	5

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

[toby995]

Network Log

Time Priority Description

08/09/2021 06:49:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/09/2021 18:32:23	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/09/2021 06:09:48	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/09/2021 16:10:33	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/09/2021 02:52:13	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/09/2021 02:02:4	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/09/2021 02:02:4	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/09/2021 04:56:42	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/08/2021 04:13:37	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/08/2021 04:13:37	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/08/2021 10:48:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 16:13:37	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 16:13:37	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:40:2	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 04:13:37	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 04:13:37	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/08/2021 21:05:2	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/08/2021 16:13:36	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/08/2021 16:13:36	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 09:18:3	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

edit: I've recently seen that alot of this seems to be happening around my area, Wigan. The specific hostname i connect to is: cpc111179-wiga15-2-0-cust989.18-3.cable.virginm.net

[jbrennand]

Hub stats look ok - BQM doesnt.

Lets start with your local connection.

What Hub model (base sticker) is it and is it in normal router mode - or modem mode with your own router? If the latter - what make/model of router?

What devices do you have plugged into the Hub connecting on ethernet cables? Laptops, Computers, your own Router, Switches, WAP's, NAS, etc?

Also, do a quick check that all of your coax cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Ensure there are no “unterminated cable loose ends or loose wires on the connectors . Disconnect all the connections and reconnect to be sure. Also check that the internal wiring is ok with no kinking or chaffing, check that all looks good with the outside cabling and wall box.

[Gareth_L]

Hello toby995

Thanks for your post and BQM

Sorry this has happened and you have had to raise in on our Forums 

Would you be able to confirm the questions asked on the above post please 

Gareth_L