Very slow upload speeds in the afternoon

[cleaverd]

The past few days I've been experiencing very slow upload speeds seemingly in the afternoon. Downloads are seemingly OK once a connection is established, but new requests often time out.

Here's a recent speedtest showing 0.02 Mbps up. Fast.com gives similar rates.

Ping also seems to be affected:

(yesterday)

(today)

You can see here that the problems start around 4pm. Yesterday it was around 2pm. (ignore the large red last night and this evening - I switched the router over to a mobile backup).

I had an engineer out about a year ago and tweaked some things - and it's been rock solid. However, this seems to be a new problem in the last few days.

Below are my router stats. Anything jumping out to anyone? Or perhaps just some temporary local problems in the neighbourhood?

Downstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	267000000	4.3	40	256 qam	17
2	275000000	3.5	40	256 qam	18
3	283000000	3.2	40	256 qam	19
4	291000000	4.4	40	256 qam	20
5	299000000	5.9	40	256 qam	21
6	307000000	6.6	40	256 qam	22
7	315000000	7.5	40	256 qam	23
8	323000000	8	40	256 qam	24
9	331000000	8.4	40	256 qam	25
10	339000000	8.5	40	256 qam	26
11	347000000	8.5	40	256 qam	27
12	355000000	8.5	40	256 qam	28
13	363000000	8.5	40	256 qam	29
14	371000000	8.5	40	256 qam	30
15	379000000	8.1	40	256 qam	31
16	387000000	7.8	40	256 qam	32
17	395000000	7.4	40	256 qam	33
18	403000000	6.8	40	256 qam	34
19	411000000	6.5	40	256 qam	35
20	419000000	6.1	40	256 qam	36
21	427000000	6	40	256 qam	37
22	435000000	5.8	40	256 qam	38
23	443000000	5.5	40	256 qam	39
24	451000000	5.6	40	256 qam	40

Downstream bonded channels

Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	40.3	5	0
2	Locked	40.3	7	0
3	Locked	40.3	1	0
4	Locked	40.9	5	0
5	Locked	40.3	6	0
6	Locked	40.3	5	0
7	Locked	40.9	5	0
8	Locked	40.3	4	0
9	Locked	40.3	20	0
10	Locked	40.9	4	0
11	Locked	40.9	1	0
12	Locked	40.3	5	0
13	Locked	40.3	8	0
14	Locked	40.3	7	0
15	Locked	40.3	7	0
16	Locked	40.9	7	0
17	Locked	40.3	8	0
18	Locked	40.9	2	0
19	Locked	40.3	0	0
20	Locked	40.3	2	0
21	Locked	40.9	8	0
22	Locked	40.3	7	0
23	Locked	40.3	7	0
24	Locked	40.3	2	0

Upstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	25799814	47.8	5120	16 qam	4
2	46199845	49.8	5120	16 qam	1
3	32600019	48.5	5120	16 qam	3
4	39400595	49	5120	16 qam	2

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

Thanks.

[legacy1]

VM must be giving high priority to small ACK packets for you to get that download speed and slow upload with bigger packets.

Lots of packet loss and upstream at 16 qam instead of the 64 yet no T# timeouts listed, do you leave your hub always no?

[cleaverd]

Hub (in modem mode) and router are always on.

Started to experience issues a bit later today - around 16:45 ish.

[legacy1]

When you get low speed connect the PC to the hub in place of router in modem mode and reboot to test speed.

[cleaverd]

Same result when plugged directly into the hub using a PC (confirmed PC had a public IP address).

Download speed is also now very intermittent. Sometimes getting 200 Mbps and the above test shows 24 Mbps!

[cleaverd]

Everything seemed better yesterday (Thursday, 1st September). Back to cut outs this afternoon (Friday, 2nd September).

I've seen various Facebook posts in my local area suggesting this is a widespread problem in the local neighbourhood - bad upload speeds in the evenings.

It's making the internet unusable in the evenings - can't stream or game online. And web browsing is very hit and miss.

Looking back through the ping monitor shows the problems first appeared on Monday, 29th August.

Have VM stopped watching these forums?

[legacy1]

Someone on your sheared line causing problems VM will get to you in some days

[Robert_P]

Hello cleaverd,

Apologies for the broadband speed and connection issues experienced recently, it's clearly not the level of service we aim to provide.

From checking the connection and equipment, it appears the problem relates to an SNR issue impacting the wider area. This has been logged under reference F010085071 with an estimated fix time of 9.00am on the 12th September 2022.

I understand this may not be the answer you were hoping for but trust it goes some way to explaining the issues. The team are working hard to fully resolve this as quickly as possible.

Rob

[cleaverd]

Thanks for the response - I really appreciate it. As long as I know someone is working on it, then I'm relatively happy - it's more the not knowing what's going on that's frustrating. I understand problems crop up with networking equipment. All "service status" areas of the VM website were showing everything as ok.

It does seem to be getting worse in that it's now all day. I never got above 300 Kbps upload yesterday.

[Matthew_ML]

Hey cleaverd, thank you for reaching out and I understand this is frustrating.

However this can affect the whole services overall including the speeds this will continue to happen until the 12th unfortunately.

I will personally keep an eye on this myself and please do keep us updated if you don't see a massive improvement overall after the 12th. Thanks