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Voneus FTTP Speed test on TBB site.

TBM

Pro Member
Why would Voneus FTTP look dreadful on TBB speed tests but as it should be on other sites ?

On FAST & Ookla it is constantly 500-580Mbps up and down but on TBB every time it is around 200Mbps down and around 50Mbps up.
I have the 500Mbps package from Voneus and I have noticed this since it was installed 3 weeks ago. Here is a fourth speed test result.

1717111846087.jpeg
 
Firstly, I'd ignore the ones from FAST, as they're notoriously over-optimistic. The desktop based tester from speedtest.net is generally a better bet as a comparison, albeit not perfect. But all web-based testing can be flaky and comes with caveats, so it could be anything from a capacity issue with TBB's tester to the path/route your traffic is taking or something else.
 
Firstly, I'd ignore the ones from FAST, as they're notoriously over-optimistic. The desktop based tester from speedtest.net is generally a better bet as a comparison, albeit not perfect. But all web-based testing can be flaky and comes with caveats, so it could be anything from a capacity issue with TBB's tester to the path/route your traffic is taking or something else.
I've actually always found Fast.com to underestimate my speed, I have a 300Mbps line, Speedtest.net and TBB generally show 300-302Mbps, but Fast tends to give me about 270-280Mbps. As you say, it could just be poor routing from my ISP to whatever networks Fast use.
 
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These were taken within minutes of each other. I realise it is only a speed test but I thought TBB was one of the better ones and as such not knowing why my result is not as expected on this site alone is like an itch that you can't reach to scratch.
 

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Try doing an IPERF for true visibility of your speed.
 
The TBB tester is nowhere near for me on YouFibre either. It doesn't matter in the grand scheme, it's using links to a single site I don't use for anything else and relies on their software.

Internet connections are for cat videos and trolling, not testing 😻
 
Why would Voneus FTTP look dreadful on TBB speed tests but as it should be on other sites ?

On FAST & Ookla it is constantly 500-580Mbps up and down but on TBB every time it is around 200Mbps down and around 50Mbps up.
I have the 500Mbps package from Voneus and I have noticed this since it was installed 3 weeks ago. Here is a fourth speed test result.

View attachment 14709
I have always found the TBB speed tests unsatisfactory in that they underestimate down and upstream bandwidth. This includes their single-thread and multi-thread and their file download tests. For me, they underestimated the speeds of Virgin and Vodafone/CityFibre when I was with them and FusionFibre now. At best, their tests are only of use when comparing ISPs, assuming that they underestimate all of them equally.Screenshot 2024-06-04 162632 SN.webpScreenshot 2024-06-04 162304 TBB.webp

I agree with those who recommend the Speedtest.net desktop speedtester which doesn't use your browser. Even then, always try to use the same test server, not necessarily the one that the speedtester automatically selects.

I have attached a snip of two tests I ran just now.
 
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I have no doubt my connection is as it should be from downloading games. Looking around the TBB map I notice others on Voneus 20-30 miles away have got symmetrical tests on TBB. As it is the only choice of fibre in this road maybe someone else a bit closer to me will run a test using Voneus soon. It is an annoying curiosity.
 
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