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RM3 9NF (Romford/Harold Hill area) awful upload speed today

Scottyboy99
Dialled in

Hello, is there an issue in the area Rm3 9nf. Noticed yesterday when doing some uploads things seemed slow. Speed tests this morning confirming that. Download seems ok but upload speed (which is usually around 50 mbits) is all over the place ranging as low as 1 mbit and 10-15 mbits at best. Tried various speedtest servers, rebooted hub. No change. Checked Sam Knows on a wired/ethernet connected computer to eliminate wifi being an issue and this returns similar low upload speed results

1 ACCEPTED SOLUTION

Accepted Solutions

The Upstream bonded channels are degraded and it is likely to be affecting the folks all around you.

The Modulation is supposed to be QAM 64 for the best upload speeds.  QAM 16 shows there is a noise fault in your area.


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

04960000041.55120QAM 161
14310000041.85120QAM 162
236600000425120QAM 163
33010000042.55120QAM 164
423600000435120QAM 165

 

See where this Helpful Answer was posted

42 REPLIES 42

Scottyboy99
Dialled in
I rang 0800 561 0061 and checked link for virgin service checker and it reports there is a problem. Frustratingly if I use the virgin media ios app and look at status it says there are no problems! So wondering which it is be. Need someone from Virgin to chime with more detail on what the issue is as its all quite vague. As I work from home reliable and consistent upload speed is crucial

thanks
Wayne

Well into the evening and still doing it. Still saying there are issues when I ring the number with no indication of what is up and whether it will be fixed anytime soon. I'd like some more detail. If it helps here's some stats from the Hub 5, doesn't mean much to me:

Item Status Comments

Acquired Downstream Channel(Hz)306000000Locked
Ranged Upstream Channel(Hz)49600000Ranged
Provisioning StateOnline

Operational

 

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
13060000003.939QAM 25622
21380000003.837QAM 2561
31460000004.137QAM 2562
41540000003.837QAM 2563
51620000003.637QAM 2564
61700000003.838QAM 2565
71780000003.538QAM 2566
81860000003.638QAM 2567
91940000003.738QAM 2568
102020000003.338QAM 2569
112100000003.338QAM 25610
122180000002.938QAM 25611
132260000002.538QAM 25612
142340000002.638QAM 25613
152420000001.938QAM 25614
162500000001.238QAM 25615
172580000000.839QAM 25616
182660000001.339QAM 25617
192740000002.739QAM 25618
202820000003.739QAM 25619
212900000003.639QAM 25620
222980000003.639QAM 25621
233140000003.940QAM 25623
243220000003.839QAM 25624
253300000003.940QAM 25625
26338000000440QAM 25626
273460000004.140QAM 25627
283540000004.340QAM 25628
293620000004.240QAM 25629
303700000004.440QAM 25630
31378000000440QAM 25631

Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked39887600
2Locked3730
3Locked3750
4Locked372831902
5Locked37176839
6Locked382541722
7Locked3823561244
8Locked381427757
9Locked382499785
10Locked3810662662
11Locked382264918
12Locked382084840
13Locked381562741
14Locked3820
15Locked382068753
16Locked3810
17Locked392502739
18Locked391832647
19Locked391275565
20Locked391279635
21Locked39797665
22Locked391961700
23Locked401017617
24Locked392080732
25Locked402891780
26Locked403184858
27Locked40557561
28Locked40503588
29Locked40512556
30Locked40539491
31Locked40490601

 

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
04960000041.55120QAM 161
14310000041.85120QAM 162
236600000425120QAM 163
33010000042.55120QAM 164
423600000435120QAM 165

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
0ATDMA0000
1ATDMA0020
2ATDMA0000
3ATDMA0000
4ATDMA000

0

 

General Configuration

Network accessMaximum Number of CPEsBaseline PrivacyDOCSIS ModeConfig file
Allowed
3
Enabled
3.1
cmreg-vmdg660-bbt076+voc-b.cm

Primary Downstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateSFIDMax Traffic RateMax Traffic BurstMin Traffic Rate
49624
1230000450 bps
42600bytes
0 bps
49626
128000 bps
3044bytes
0 bps

Primary Upstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling TypeSFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling Type
49623
55000270 bps
42600bytes
0 bps
42600bytes
Best Effort
49625
128000 bps
3044bytes
0 bps
1522bytes
Best Effort

 

I had to get up at 4 am so thought I'd run a speedtest. Upload terrible, barely getting over 1 m/bit sec. So that rules out congestion. Please Virgin, advise what is going on urgently. It is making working from home very very difficult as I have to do a lot of uploading! Just saving a basic excel file on my work laptop (which remotes to their server) is painful 

Hi Scottyboy99 👋 welcome back to the community! Thank you for posting. 

Sorry to hear of your connection issues due to a local outage. You can check for local outages and view updates here 👉 https://virg.in/service or by calling 📞0800 561 0061. The outage affecting you is currently due to end on 06.03.23 at 12:05pm. 

This is an SNR outage. SNR (signal to noise ratio) is just a technical term for interference of the Broadband signal caused by noise which ingresses on to our network. It's a difficult problem to locate and diagnose because noise can ingress anywhere on the network. As a general rule it's normally caused by customer equipment e.g. loose connections or 3rd party equipment attached to our network. However it can also be attributable to local architecture, e.g street cabinets, cabling or at the origin of the signal which we call the Headend (servers/routing system). 
The only way to establish where the noise is originating is for the Network Techs to run a series of trace routes. Once found then the cause dictates the amount of work required and the time frame for resolution.

Please do get back in touch if you continue to experience service issues following the confirmed end of the outage and we will then investigate and do our best to help. Sincerest apologies for any inconvenience in the meantime. Thank you for your patience whilst we get it sorted! 

All the best! 🌞

 

Molly

Thank you, I hope the whole connection doesn't bomb before then. If you can detect the area on the post code surely that means the problem exists beyond the boundaries of my property right? 

The Upstream bonded channels are degraded and it is likely to be affecting the folks all around you.

The Modulation is supposed to be QAM 64 for the best upload speeds.  QAM 16 shows there is a noise fault in your area.


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

04960000041.55120QAM 161
14310000041.85120QAM 162
236600000425120QAM 163
33010000042.55120QAM 164
423600000435120QAM 165

 

Thank you for the informative post. I did post on facebook group for our road and didn't get a single response. I suppose some folk might not even notice especially as download is ok. It's because I do a lot of uploading (work and leisure) that it sticks out to me.

I've used the speedtest. net app to run a few tests. Both on windows pc and ios. So a mix of wired and wireless testing. I didn't realise you could get a more detailed result. Looking at these I can see there is some packet loss being recorded too. Compared to just before this problem cropped up at the weekend I could see there was literally never any packet loss (if there was it was in the order of 0.1 to 0.5%). Now there is packet loss on virtualy every test (wired and wireless) to go with the reduced/erratic upload speeds. The worst one I saw was 7%, most commonly seems to be ranging 1 to 2.5%. Worrying.

If your VM Hub is in Router mode ( i.e. offers WiFi)

Try the below to speed test the Hub, once the test begins be sure the click on Run full test to see the upstream figures.

https://www.samknows.com/realspeed/