Super Slow Upload Speeds - M600

[amitl]

Hi,

I am on M600 and haven't had any issues for a year. Yesterday I noticed browsing became a little sluggish and did a speed test which showed my upload speed to be super slow and is still slow this morning.

I've turned off my home hub 3 for 10-15mins and turned it back on but it hasn't made any difference.

I've checked for faults online and on the phone but there aren't any reported in my area.

Appreciate any help on this.

Thanks

Amit

[lotharmat]

Can you post your Hub status and logs?
Someone should be spot if there is a problem
Navigate to http://192.168.0.1 (or http://192.168.100.1 - if in modem mode)
Don't log in!
Click on 'router status'
Copy/paste the data from each of the tabs. The forum software will remove the MAC addresses for you (you may need to click the 'post' button again).

Also, set up a 'Broadband Quality Monitor'. This will monitor the state of your connection and record any network dropouts etc - You can do this at ThinkBroadband (https://www.thinkbroadband.com/broadband/monitoring/quality)
Give it a while to gather data and then click 'Share Live graph' and paste the 'Direct Link' into the forum!

[amitl]

Thanks for the response, I've set up the monitor, will give it a few hours to let it gather data.

Here are the router stats in the meantime:

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)	138750000	Locked
Ranged Upstream Channel (Hz)	32599971	Locked
Provisioning State	Online

Downstream bonded channels

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

1	138750000	4.5	37	256 qam	1
2	146750000	4.6	37	256 qam	2
3	154750000	4.8	37	256 qam	3
4	162750000	4.8	37	256 qam	4
5	170750000	5	37	256 qam	5
6	178750000	5	37	256 qam	6
7	186750000	5	37	256 qam	7
8	194750000	4.8	37	256 qam	8
9	202750000	4.5	37	256 qam	9
10	210750000	4.5	37	256 qam	10
11	218750000	4.3	37	256 qam	11
12	226750000	4.3	37	256 qam	12
13	234750000	4.3	37	256 qam	13
14	242750000	4.3	37	256 qam	14
15	250750000	4.3	37	256 qam	15
16	258750000	4.3	37	256 qam	16
17	266750000	4.3	37	256 qam	17
18	274750000	4.4	37	256 qam	18
19	282750000	4.5	37	256 qam	19
20	290750000	4.5	37	256 qam	20
21	298750000	5	37	256 qam	21
22	306750000	4.9	38	256 qam	22
23	314750000	5.1	38	256 qam	23
24	322750000	5.3	38	256 qam	24

Downstream bonded channels

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

1	Locked	37.3	7	0
2	Locked	37.3	8	0
3	Locked	37.3	5	0
4	Locked	37.6	6	0
5	Locked	37.6	6	0
6	Locked	37.3	5	0
7	Locked	37.6	7	0
8	Locked	37.6	5	0
9	Locked	37.6	7	0
10	Locked	37.6	5	0
11	Locked	37.6	5	0
12	Locked	37.6	6	0
13	Locked	37.3	6	0
14	Locked	37.6	7	0
15	Locked	37.6	3	0
16	Locked	37.3	5	0
17	Locked	37.6	4	0
18	Locked	37.6	5	0
19	Locked	37.6	5	0
20	Locked	37.6	6	0
21	Locked	37.3	4	0
22	Locked	38.6	5	0
23	Locked	38.6	5	0
24	Locked	38.6	5	0

Upstream bonded channels

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

1	32599971	42	5120	64 qam	11
2	39399811	42	5120	64 qam	10
3	46200194	42.3	5120	64 qam	9
4	25800293	42	5120	64 qam	12

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	131	0

[amitl]

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	cmreg-vmdg505-bbt078-b.cm

Primary Downstream Service Flow

SFID	371656
Max Traffic Rate	690000278
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	371655
Max Traffic Rate	44000278
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

Network Log

Time Priority Description

02/09/2021 09:15:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 09:14:56	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 08:51:51	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 08:37:25	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 08:37:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 08:36:42	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 08:35:56	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 08:35:51	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 07:52:28	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 07:50:53	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 07:32:49	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/09/2021 07:30:51	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/09/2021 18:33:47	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/09/2021 18:33:23	critical	Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/09/2021 18:33:23	critical	Ranging Request Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/08/2021 04:23:18	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/08/2021 01:00:23	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 13:50:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 13:00:23	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 05:35:0	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[lotharmat]

That stats and power levels look fine but there is a massive problem with T3 timeouts!

See here for an explanation of errors in the log:

https://community.virginmedia.com/t5/Gaming-Support/Can-someone-help-me-with-these-errror-messages-p...

The fact that these have generated quickly means that there is a problem that VM need to investigate - it will probably mean a tech visit!

[Beth_G]

Hi amitl,

Thanks for posting on the Community Forums. I'm sorry to hear you've been suffering from slow broadband speeds recently. 

As @lotharmat has correctly advised, there are a few issues here with your T3 timeouts which will need looking into by an engineer. I'm going to pop you over a PM now so I can take some more details and get this arranged for you.

Please look out for my message over at the purple envelope.

Thanks

Beth