Another No Ranging Response received - T3 time-out post :)

[CRNeo]

Connection been a bit dodgy lately.... I know there was some known service issues in my area not so long ago but all seems ok now with that.

Last time I had this engineer fitted some sort of booster but seems to have dropped off recently and speeds sometimes a bit lower than I usually get (I'm on 350) I realise that's dependant on a lot of factors but I test from same kit.

Downstream bonded channels

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

1	171000000	-1.2	37	256 qam	5
2	139000000	-1.7	37	256 qam	1
3	147000000	-1.2	37	256 qam	2
4	155000000	-1.2	37	256 qam	3
5	163000000	-1.2	37	256 qam	4
6	179000000	-1.2	37	256 qam	6
7	187000000	-1.2	37	256 qam	7
8	195000000	-1	38	256 qam	8
9	203000000	-1	38	256 qam	9
10	211000000	-1	38	256 qam	10
11	219000000	-1	38	256 qam	11
12	227000000	-1.2	37	256 qam	12
13	235000000	-1.4	37	256 qam	13
14	243000000	-1.4	38	256 qam	14
15	251000000	-1	38	256 qam	15
16	259000000	-1	38	256 qam	16
17	267000000	-1	38	256 qam	17
18	275000000	-1	37	256 qam	18
19	283000000	-1	38	256 qam	19
20	291000000	-0.7	37	256 qam	20
21	299000000	-0.2	37	256 qam	21
22	307000000	0	37	256 qam	22
23	315000000	0.2	38	256 qam	23
24	323000000	0.4	37	256 qam	24

Downstream bonded channels

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

1	Locked	37.6	361	0
2	Locked	37.6	1068	0
3	Locked	37.6	728	0
4	Locked	37.3	583	0
5	Locked	37.6	477	0
6	Locked	37.6	273	0
7	Locked	37.6	260	0
8	Locked	38.6	183	0
9	Locked	38.9	165	0
10	Locked	38.6	174	0
11	Locked	38.6	191	0
12	Locked	37.6	225	0
13	Locked	37.3	292	0
14	Locked	38.6	328	0
15	Locked	38.6	259	0
16	Locked	38.6	282	0
17	Locked	38.6	360	0
18	Locked	37.6	411	0
19	Locked	38.6	509	0
20	Locked	37.6	489	0
21	Locked	37.3	434	0
22	Locked	37.6	343	0
23	Locked	38.6	302	0
24	Locked	37.6	230	0

Upstream bonded channels

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

1	46200000	44.3	5120	64 qam	11
2	39400000	43.8	5120	64 qam	12
3	53700000	44.3	5120	64 qam	10
4	60300000	45.8	5120	64 qam	9

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	2	0
2	ATDMA	0	0	54	0
3	ATDMA	0	0	17	0
4	ATDMA	0	0	6	0

[CRNeo]

Network Log

Time Priority Description

13/08/2021 13:31:45	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/08/2021 11:02:43	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/08/2021 10:14:33	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/08/2021 10:14:33	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 10:45:56	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:18:32	critical	Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:18:32	critical	Ranging Request Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:18:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:18:9	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:17:7	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:17:7	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:16:36	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:16:36	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:16:27	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:16:27	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:15:27	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:15:27	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:15:20	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:15:20	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/08/2021 09:14:30	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[lotharmat]

Power levels look good as does SNR and RxMER.

The T3 timeouts are a concern! - When was the hub last rebooted? Also - Have VM been doing any local work as this can cause T3s to rise!

[CRNeo]

The router was rebooted couple days ago, rebooted a few times recently.

There is "no known issues" in my area currently but at the beginning of the week I think it was there were some issues being shown in the service status.

[Kath_F]

Hi CRNeo, 

Thanks for your post and apologies to hear you are having an issue with your internet connection. 

Checking things at this end, all is looking good within the area. Your Hub stats are also good and not showing any issues. 

I have sent a hit down the line to try and resolve this. Can you please reboot the hub and then monitor for the next 24 hours to see if you have any more issues. 

Keep us posted. 

Thanks,