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No Ranging Response received - T3 time-out

Hello All, 

Found this thread on the board and I'm having the exact same issues. https://community.virginmedia.com/t5/QuickStart-set-up-and/No-Ranging-Response-received-T3-time-out/...

Internet keeps dropping for 5-10 minutes 5-6 times a day, only noticed it more as I'm working from home, it's a right pain in the bum when you're on a conference call... 

No idea if any of the below is helpful to anyone, I'm assuming this will need an engineer call out? 

Network Log
Time	Priority	Description
07/04/2020 14:46:48	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:38	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:34	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:20	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:19	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:18	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:18	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:17	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:15	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:13	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:10	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:9	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:8	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:7	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:7	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:46:5	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:45:38	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/04/2020 14:45:20	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Upstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	32599985	5.1	5120	64 qam	5
2	39400053	5.1	5120	64 qam	4
3	46200141	5.1	5120	64 qam	3
4	53702626	5.1	5120	64 qam	2
5	60300141	5.1	5120	64 qam	1
6	25800283	5.1	5120	64 qam	12


Downstream bonded channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	259000000	0	40	256 qam	16
2	251000000	-0.5	40	256 qam	15
3	267000000	0.4	40	256 qam	17
4	275000000	0.2	40	256 qam	18
5	283000000	0.2	40	256 qam	19
6	291000000	0.2	40	256 qam	20
7	299000000	0.2	38	256 qam	21
8	307000000	0	40	256 qam	22
9	315000000	0	38	256 qam	23
10	323000000	0.2	38	256 qam	24
11	371000000	-1	38	256 qam	25
12	379000000	-1	38	256 qam	26
13	387000000	-1.2	38	256 qam	27
14	395000000	-1	38	256 qam	28
15	411000000	-0.9	38	256 qam	29
16	419000000	-1	38	256 qam	30
17	427000000	-1	38	256 qam	31
18	435000000	-1	38	256 qam	32
19	443000000	-1.5	38	256 qam	33
20	451000000	-1.5	38	256 qam	34
21	459000000	-1.9	38	256 qam	35
22	467000000	-1.7	40	256 qam	36
23	475000000	-1.9	38	256 qam	37
24	483000000	-1.7	38	256 qam	38



Downstream bonded channels
Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	40.3	85329	23193
2	Locked	40.9	88674	25419
3	Locked	40.3	86585	22981
4	Locked	40.3	91779	21441
5	Locked	40.3	85294	17546
6	Locked	40.3	79607	13803
7	Locked	38.9	78513	10553
8	Locked	40.3	80917	8709
9	Locked	38.9	89496	6502
10	Locked	38.9	83479	5101
11	Locked	38.9	67165	1757
12	Locked	38.9	67184	953
13	Locked	38.9	62742	500
14	Locked	38.9	62460	538
15	Locked	38.9	49271	404
16	Locked	38.9	49250	329
17	Locked	38.9	52454	356
18	Locked	38.9	51085	299
19	Locked	38.9	48245	217
20	Locked	38.9	45729	97
21	Locked	38.9	43424	130
22	Locked	40.3	42636	46
23	Locked	38.9	41641	13
24	Locked	38.9	43850	0
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