Broadband News

Pinch felt at Vodafone on first of September - UPDATED

We covered the problems over the August Bank Holiday weekend a few days ago and we have had a day of poor speeds once again showing up in our speed test results.

Vodafone Home Broadband daily average download performance
Peak time Median and mean average download performance from speed test users of thinkbroadband speed test using Vodafone Home Broadband connections

The graph shows speeds dropping to same sort of average levels as the previous problem day, we've plotted the peak time 7pm to 10pm speeds this time with the full 24 hour average for the last 7 days in the table.

7pm to 10pmMedian downloadMean DownloadMedian UploadMean Upload
Monday 26th August 16.4 Mbps 22 Mbps 4.1 Mbps 5.6 Mbps
Tuesday 27th August 31.3 Mbps  34.9 Mbps 6.8 Mbps 8.8 Mbps
Wednesday 28th August 30.9 Mbps 32.5 Mbps 6.7 Mbps 8.2 Mbps
Thursday 29th August 31.5 Mbps  36.4 Mbps 6.6 Mbps 9.2 Mbps
Friday 30th August 31.0 Mbps  37.1 Mbps 5.9 Mbps 8.8 Mbps
Saturday 31st August 29.7 Mbps 32.5 Mbps 6.8 Mbps 8.1 Mbps
Sunday 1st September 13.1 Mbps 24.1 Mbps 3.4 Mbps 6.0 Mbps

Social media also had people complaining and the issues affected both VDSL2 and Gigafast customers confirming that it is not the Openreach VDSL2 network behaving oddly.

Given that this problem happened again on a weekend suggests that parts of their core network may be running close to the limit and thus when busy see contention kicking in aggressively. In the table we have included the upload averages which are also impacted.

Update 6pm 2nd September: The median and mean download speeds until 5:15pm are 32 Mbps and 34.3 Mbps respectively. Also looking at the distribution of locations for people testing their speeds the North West had a high  concentration for tests carried out so far in September, suggesting the issue may be regional. The poor speed test results look to start once you reach Nottingham, the North East and Glasgow looked relatively OK but Edinburgh does have a cluster of poor speeds.

We will keep an eye on the speeds as the peak time window commences. ISPreview managed to get a vague update on the possible cause with planned maintenance on a damaged fibre stated as the cause. If this really was planned maintenance then Vodafone need to update status pages to warn customers and picking a Sunday evening is not the best time to network maintenance as its one of the peak times for people to sit down and watch some streamed content or more boring things like finish homework. 

Comments

This human error they mentioned seems an awful lot like an error in capacity planning.

  • CarlThomas
  • 19 days ago

I've been affected yesterday and all day today til the last ten mins it's shot back up and I'm in Salford Greater Manchester

  • Damohtc
  • 18 days ago

I wasnt aware of these issues until now. Its just my luck that ive just switched to Vodafone Superfast 2 (75mbps) £23 today from Origin Broadband (35mbps) £21 to take advantage of their Superfast 2 deal. After checking my speeds on the Speedtest.net app its no better than on Origins averaging at 35mbps. So i came to TBB to set up my BB Quality Monitor Graph & run the speed checker here. At which point i saw this news report.

  • Natty
  • 18 days ago

If your speeds are the same then it would suggest a migration has happened but still on the same wholesale product i.e. underlying 40/10 product. So not likely to be anything todo with the problem.

What was the estimate for the line?

  • andrew
  • thinkbroadband staff
  • 18 days ago

The estimated download speed given was between 53.25 & 74.86 mbps dl.
I have just retested my speeds using a wired connection instead of wifi & there is an improvement but its still coming in at the bare minimum average of 54mbps dl with the upload of 16mbps being ok.

My TP LINK vr2600 Router Stats dont give me much detail.

Upstream Downstream
Current Rate(kbps) 16786 59641
Max Rate(kbps) 16786 70586
SNR Margin(dB) 5.9 6.1
Line Attenuation(dB) 0 18.5

  • Natty
  • 18 days ago

54 Mbps download for 59 Mbps sync is not bad i.e. the normal gap due to the protocol overheads.

The gap to the max rate might close if options such as G.INP get switched on by the DLM systems, so best to now just leave things along and let everything figure out what is best.

  • andrew
  • thinkbroadband staff
  • 18 days ago

My line suddenly resync two days ago, although my router stats are very limited, offering no info on G.INP being enabled, interleave, fastpath, etc. I assume some change happened to that affect as my connection momentarily disconnected / reconnected.

Speedtest 63.7mbps dl & 16.2mbps upload

TBB Live Graph https://www.thinkbroadband.com/broadband/monitoring/quality/share/501ce4c4a2c7efd33b15bf55c6034bac4b6a9aa5

Upstream Downstream
Current Rate(kbps) 16953 69296
Max Rate(kbps) 16931 69595
SNR Margin(dB) 5.8 6.4
Line Attenuation(dB) 0 18.5
Errors(pkts) 200 0

  • Natty
  • 14 days ago

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