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Standard User matthewcl375
(member) Wed 13-Mar-13 20:58:26
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Re: Will switching ISP get me a better sync?


[re: MrSaffron] [link to this post]
 
How does it work sometimes that speed tests show decent download speeds but websites and videos are still loading slowly?
Administrator MrSaffron
(staff) Wed 13-Mar-13 21:00:29
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Re: Will switching ISP get me a better sync?


[re: matthewcl375] [link to this post]
 
Various reasons

1. Routing between sites varies
2. Some speedtests report a burst speed only
3. Speedtests often use multiple threads to give the best possible speeds
4. Website itself may be busy
5. Websites are lots of very small elements, so latency plays a critical part
6. DNS lookups may be slow

Andrew Ferguson, [email protected]
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User XRaySpeX
(eat-sleep-adslguide) Wed 13-Mar-13 22:52:37
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Re: Will switching ISP get me a better sync?


[re: matthewcl375] [link to this post]
 
However good speedtests allow you to check whether you are getting from your ISP more or less what you should be. While all those aspects that Mr Saffron mentions are beyond an ISP's control.

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC


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Standard User matthewcl375
(member) Thu 14-Mar-13 23:07:34
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Re: Will switching ISP get me a better sync?


[re: XRaySpeX] [link to this post]
 
Right, apart from DNS (some ISPs maintain their own caching DNS servers to speed things up for the EU)

P.S. I find it misleading that ISPs always quote the 'best connection' figure, say you signed up for a 12Mbps service, that 12Mbps is achievable only during the day and late night/early morning.

IMO they should be quoting the average speed you can get in the evenings, as this is when most working people use their broadband, but thats another debate entirely tongue

Edited by matthewcl375 (Thu 14-Mar-13 23:07:54)

Administrator MrSaffron
(staff) Thu 14-Mar-13 23:13:17
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Re: Will switching ISP get me a better sync?


[re: matthewcl375] [link to this post]
 
Providers are meant to give a personalised speed estimate at signup if signed up to the Ofcom code of practice and in advertising should show the speed that 10% of users can achieve

Andrew Ferguson, [email protected]
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User matthewcl375
(member) Thu 14-Mar-13 23:28:08
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Re: Will switching ISP get me a better sync?


[re: MrSaffron] [link to this post]
 
Yes, BT gave me an estimate based on their database which hasn't failed me so far, it predicts 6.5-9Mbps sync atm which is spot on (6.88Mbps) and is predicting 16-19.5 for ADSL2+, but I've heard many say these figures are often an underestimate
Standard User XRaySpeX
(eat-sleep-adslguide) Fri 15-Mar-13 01:22:55
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Re: Will switching ISP get me a better sync?


[re: matthewcl375] [link to this post]
 
In reply to a post by matthewcl375:
Right, apart from DNS
Yes, I thought that as I posted but they are easily overcome w/out troubling the ISP.
In reply to a post by matthewcl375:
P.S. I find it misleading that ISPs always quote the 'best connection' figure, say you signed up for a 12Mbps service, that 12Mbps is achievable only during the day and late night/early morning.
No, generally your sync speed does not change day-in day-out. You are mixing it up with throughput. Haven't we been here before?

BUT all advertising and your personalised quote at sign-up is in terms of sync speed or "access line speed" as Ofcom calls it.

@MrSaffron:
the Code encourages the ISPs to provide consumers with information on their access line speed *

* access line speed - This refers to the maximum speed of the data connection between the broadband modem and the local exchange or cable head end.
Now it may be that it is this you find misleading but, for the reasons we've just discussed, reliable throughput figures are hard to predict by the very nature of the Net, and Ofcom & ASA have accepted this.
EDIT:
Ofcom is also working hard to find a means by which this information can be supplemented by additional information, including on the average throughput speeds obtained through different ISPs, since these speeds are likely to vary for a number of reasons. If appropriate, the Code will be revised as a result of such further work.


1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC

Edited by XRaySpeX (Fri 15-Mar-13 01:40:10)

Standard User XRaySpeX
(eat-sleep-adslguide) Fri 15-Mar-13 01:27:48
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Re: Will switching ISP get me a better sync?


[re: matthewcl375] [link to this post]
 
I believe those estimates you are quoting you obtained from the public BTw Checker.

But, as a matter of interest, were you given a personalised quote at sign-up to BT?

1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC
Standard User matthewcl375
(member) Fri 15-Mar-13 15:14:10
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Re: Will switching ISP get me a better sync?


[re: XRaySpeX] [link to this post]
 
I was, they gave my dad a quote by email and on their website of 17.5Mbps smile
Standard User matthewcl375
(member) Fri 15-Mar-13 17:46:06
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Re: Will switching ISP get me a better sync?


[re: matthewcl375] [link to this post]
 
Just got home to see this on the router log:

Mar 15 08:23:00 xDSL linestate up (ITU-T G.992.1; downstream: 7616 kbit/s, upstream: 448 kbit/s; output Power Down: 13.8 dBm, Up: 11.9 dBm; line Attenuation Down: 6.0 dB, Up: 6.0 dB; snr Margin Down: 6.3 dB, Up: 23.0 dB)

Looks like I've hit my max sync with interleaving enabled smile However I am now seeing more FEC 'errors'

Edited by matthewcl375 (Fri 15-Mar-13 19:23:46)

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