Unusable low upload speeds all of a sudden

[R_Khan]

Hi,

My internet has been fine no real issues (even after upgrading to the hub 4). 

I have the 350M broadband and I usually get the speeds expected via speed tests (300+ download and 30-40 upload)

Today out of the blue the download speed has been really low, like 0.05mbps! I have read other posts with similar issues which have stated low power issues in local area and are resolved by engineers coming out (not to the home but local area to fix issues).

I can’t log in via VPN for work at home and my daughter is home schooling at the moment as her class has been sent home for the next week or so! 

My download speed is still ok (250+ mbps) I have done all the usual checks of cabling etc and have reset the hub and my router (I use a separate router and use the hub in modem mode).

I’ve checked for local issues in area, none for broadband at the moment. (TV is showing an issue). I also used the VM app to run tests which after the first test sends me to the VM website and when I run a test from there it comes back with:

Network issue

We have detected an issue on our network which maybe affecting your broadband service.

What does this mean?

• This is impacting multiple customers in your area.
• This will cause intermittent speeds and performance may vary at times.

My postcode is CM19 5RB. 

Can someone please help?!

Kind regards,

Rashid

[R_Khan]

I only just signed up for the Bqm like less than an hour ago. I’ll post up the graph once it’s run for a while 

[Ryanjd]

I called the 0800 number and said that they are working on resolving an issue in CM19 5RS and that it's a 'really complex issue' so taking engineers a while, but when I click the link they sent says all ok still..

Just in case it will help get it resolved, here is my BQM:

https://www.thinkbroadband.com/broadband/monitoring/quality/share/b86a3e648fe87dabaa7817dc7eda8fd81a... 

Also my speedtest:

Can post my full router (HUB 3 modem mode) stats too but not sure what the rules are here on adding that on someone elses post

Upstream bonded channels

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

1	25800000	43.7	5120	16 qam	6
2	32600000	43.7	5120	16 qam	5
3	39400000	43.7	5120	16 qam	4
4	46200000	43.7	5120	16 qam	3

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	4	0
2	ATDMA	0	0	5	0
3	ATDMA	0	0	5	0
4	ATDMA	0	0	13	0

Hopefully it's resolved by the morning!

Kind regards

Ryan

[varsam]

Same area with same problem - checked cable, hub restarted and the usual hoops jumping to no avail - When can I expect this to be resolved and will my bill be reduced to reflect the lack of service?

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)	419000000	Locked
Ranged Upstream Channel (Hz)	39400000	Locked
Provisioning State	Online

Downstream bonded channels

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

1	419000000	3	38	256 qam	36
2	251000000	2.9	38	256 qam	15
3	259000000	2.7	38	256 qam	16
4	267000000	3.5	38	256 qam	17
5	275000000	3.5	38	256 qam	18
6	283000000	3.5	38	256 qam	19
7	291000000	3.9	38	256 qam	20
8	299000000	4.8	38	256 qam	21
9	307000000	4.4	38	256 qam	22
10	315000000	4.4	38	256 qam	23
11	323000000	5	38	256 qam	24
12	331000000	5.4	38	256 qam	25
13	339000000	5.1	38	256 qam	26
14	347000000	5	38	256 qam	27
15	355000000	5.1	38	256 qam	28
16	363000000	4.9	40	256 qam	29
17	371000000	4.9	38	256 qam	30
18	379000000	4.5	38	256 qam	31
19	387000000	3.7	38	256 qam	32
20	395000000	3.7	38	256 qam	33
21	403000000	4	38	256 qam	34
22	411000000	3.7	38	256 qam	35
23	523000000	4.3	38	256 qam	37
24	531000000	3.9	38	256 qam	38

Upstream bonded channels

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

1	39400000	40.8	5120	64 qam	4
2	46200000	41.3	5120	64 qam	3
3	53700000	42.3	5120	64 qam	2
4	60300000	41.3	5120	64 qam	1

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

Network Log

Time Priority Description

08/12/2021 22:20:57	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 22:10:19	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 22:10:14	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 22:10:14	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 22:10:14	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 22:02:59	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 22:02:30	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 21:50:32	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 21:49:56	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 09:11:45	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/12/2021 03:57:55	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;
08/12/2021 03:57:55	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/12/2021 16:56:55	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/12/2021 06:55:12	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;
05/12/2021 06:55:12	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/12/2021 01:48:10	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/12/2021 01:48:9	Warning!	B-INIT-RNG Failure - Retries exceeded;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/12/2021 01:46:29	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/12/2021 01:46:15	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/12/2021 01:46:10	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[varsam]

resolution expected on 14/12/2021?
Are they having a laugh? How ridiculous.

[R_Khan]

my BQM link:

https://www.thinkbroadband.com/broadband/monitoring/quality/share/6716ca2ecebf9fcdca8bea475284fdb36e... 

[varsam]

404 - Page Not Found

[R_Khan]

https://www.thinkbroadband.com/broadband/monitoring/quality/share/6716ca2ecebf9fcdca8bea475284fdb36e... 

[jbrennand]

There are 3 people commenting on this thread now so I will leave it to others to sort it out

[R_Khan]

service status is now showing a fault for broadband in the local area, expected to be fixed by 6:00pm

0800 number says they are “improving” the quality of something and may affect services but again expected to be fixed by 6:00pm today

[R_Khan]

Just done a speed test… it appears they have fixed it! Just got 35.5mbps upload speed!

im going to reboot and reset everything then get everything back to the way it was (modem mode enabled and using my own router etc.)