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Broadband speeds - making sense of the figures

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Dabbler
Posts: 11
Registered: ‎29-01-2016

Broadband speeds - making sense of the figures

I have a FTTC Unlimited broadband service with Plusnet

I did some tests when it was set up (Autumn 2012) and I have recorded downloads speeds of 20 to 23 and upload speeds of 16. I have a reading from June 2013 of 24 and 6 respectively.

Lately things have seemed not be so great and I was getting readings as low as 8 and 3 respectively.

Today I have run some tests:

I run: https://speedtest.btwholesale.com

It gives:

Ping: 23 ms
Download: 8.37 Mbps
Upload: 0 Mbps


If I run: https://broadbandtest.which.co.uk/

It gives:

Ping: 16 ms
Download: 16.5 Mbps
Upload: 6.9 Mbps



If I run: https://www.broadbandspeedchecker.co.uk/

It gives:

Ping: 22 ms
Download: 13.09 Mbps
Upload: 5.66 Mbps


With the BT test you can also do additional diagnostic which gives the following information:

Advance Test

Download Test
Download speed achieved during the test was 8.37 Mbps
For your connection, the acceptable range of speeds is 12.96 - 18.52 Mbps
IP Profile for your line is 18.52 Mbps

Upload Test
Upload speed achieved during the test was 0 Mbps
IP Profile for your line is 10 Mbps

I did raise at ticket with Plusnet and is still awaiting resolution but I am wondering is the BT test flawed in some way? What is that IP profile, is it accurate? How can it be lower download speed range/profile than I was getting back in 2012/13?

Also, why the disparity in tests from BT's 8 up to 13 with one checker and 16 with another all within a short space of time?

7 REPLIES 7
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All Star
Posts: 1,238
Thanks: 282
Fixes: 12
Registered: ‎28-02-2017

Re: Broadband speeds - making sense of the figures

@picnoir 

Can't help with your specific query but if you put your phone number in here you should get the expected speeds for your line.

/www.broadbandchecker.btwholesale.com/#/ADSL

 

Brian

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Moderator
Moderator
Posts: 23,474
Thanks: 4,009
Fixes: 1,026
Registered: ‎11-01-2008

Re: Broadband speeds - making sense of the figures


Moderators Note


This topic has been moved from ADSL Broadband to Fibre

Customer / Moderator
If it helped click the thumb
If it fixed it click 'This fixed my problem'
Highlighted
Dabbler
Posts: 11
Registered: ‎29-01-2016

Re: Broadband speeds - making sense of the figures

Cheers, seems to tally up with what I should be expecting.

High of 32, low of 17/18.

Interesting that it has an "Observed Speeds" section saying that on 8th May it detected a "Max Observed Downstream Speed" of 19.99.

Just got a reading of 10 broadbandspeedchecker.co.uk

Highlighted
Dabbler
Posts: 11
Registered: ‎29-01-2016

Re: Broadband speeds - making sense of the figures

The ticket says:


Thanks for reporting your broadband problem

Our tests have found a fault with your broadband service.

You've given us all the information we need about your problem, we'll raise this to our supplier for investigation.


 

And then

 


The Question 201676221 has been released from hold and sent back to CSC - FTTC Faults - Speed

 

But no change since 4:51am, Thursday 14 May 2020

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Plusnet Help Team
Plusnet Help Team
Posts: 104
Thanks: 7
Fixes: 2
Registered: ‎09-03-2020

Re: Broadband speeds - making sense of the figures

Hi @picnoir,

 

Thank you for taking your time to get in touch.

 

I am very sorry that you are having a problem with our service. Sadly you do not have an account username linked to your profile therefore I am unable to check the process of this for you. Please do not provide this on this platform as this is public for everyone to use.


If the ticket is in that pool that is correct and I assure you our faults team will respond as soon as possible.

 

Kind regards,

 

Josh

 Josh Berriman
 Plusnet Help Team
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Dabbler
Posts: 11
Registered: ‎29-01-2016

Re: Broadband speeds - making sense of the figures

Got a response to my ticket with Plusnet:

[quote]I have run a test down your connection and can see that your line is currently banded at 20 Mbps, this means that even though your line has potential to reach higher, it does not have the availability to do so. This is usually due to a previous fault on the line restricting the speeds.I am sending for this banding to be lifted, and this can take up to 24 hours to complete. Therefore please reboot your router on Monday morning and monitor your connection from there.

We will retest your line once this has completed to see if this has improved the speeds to the property for you and will contact you back if we need to do further investigations.[/quote]
I've been getting a lot less than 20 anyway so doesn't fully explain it but the fact the line is currently restricted and may have been faulty before that gives some logic to not getting the performance I once was. Hopefully things will be better after Monday!

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Dabbler
Posts: 11
Registered: ‎29-01-2016

Re: Broadband speeds - making sense of the figures

Found this one banding:

When first activated, your line is 'fully rate adaptive'. This means there's no upper limit to your sync speed (within the capabilities of your broadband product).

If your line drops frequently, has a high error rate or severe noise problems, a banded profile can be applied to aid stability.

This will force your line to sync within the range of an assigned band and is used to limit the sync rate when it's not stable above a certain rate.


I don't really get it. If I have problems with the line shouldn't they be sorted rather than just impose a restriction down until it's "stable"?

If the instability is down to something under my remit they should give me a chance to fix it surely?