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Broadband seems slow ????

metalblade
Newbie
Posts: 8
Registered: 05-08-2007

Broadband seems slow ????

I've run some speed tests and wonder if anyone can tell me if I have a problem. I am on Premier Plus up to 8Mb
Date Download Speed Upload Speed 
Today 01:07 2270 kbps (284kB/s) 353 kbps (44.1kB/s) Share
Today 00:45 2242 kbps (280kB/s) 358 kbps (44.8kB/s) Share
Sunday 22:17 2318 kbps (290kB/s) 359 kbps (44.9kB/s) Share
Sunday 15:07 2257 kbps (282kB/s) 307 kbps (38.4kB/s) Share
Sunday 14:58 2201 kbps (275kB/s) 344 kbps (43kB/s) Share
Mar 7, 21:51 4212 kbps (527kB/s) 378 kbps (47.3kB/s) Share
Mar 7, 21:20 3622 kbps (453kB/s) 378 kbps (47.3kB/s) Share
Result for the BT speed test are -
Test1 comprises of Best Effort Test:  -provides background information.
    Your DSL connection rate: 7616 kbps(DOWN-STREAM),  448 kbps(UP-STREAM)
    IP profile for your line is - 6500 kbps
    Actual IP throughput achieved during the test was - 5609 kbps
If you wish to discuss these results please contact your ISP.
8 REPLIES
pierre_pierre
Grafter
Posts: 19,757
Registered: 30-07-2007

Re: Broadband seems slow ????

where do you get the non BT speed tests from, they dont look correct, i.e. half the BT test, not normal
try  http://www.mybroadbandspeed.co.uk/ The PlusNet one
Community Veteran
Posts: 3,789
Registered: 08-06-2007

Re: Broadband seems slow ????

When the BT Speedtester and an external speedtester show such a wide difference, the cause is usually incorrect MTU and RWIN settings on your local machine.
Try changing the RWIN/MTU, rebooting your machine (very important!) and then posting your external speedtest results.
B.
pierre_pierre
Grafter
Posts: 19,757
Registered: 30-07-2007

Re: Broadband seems slow ????

but he did get on the BT test
Quote
Actual IP throughput achieved during the test was - 5609 kbps

which doesn't to me look like RWIN, mind you not my area of expertise
Community Veteran
Posts: 3,789
Registered: 08-06-2007

Re: Broadband seems slow ????

Pierre,
This is very common - honestly! 
If the BT Speedtester shows substantially higher throughput speeds (in this case 5609Kbps) over an external speedtest (2270Kbps) the cause is 99.9% of the time RWIN settings.
B.
Community Veteran
Posts: 6,735
Thanks: 12
Registered: 02-02-2008

Re: Broadband seems slow ????

Agree. I know from practical experience on many systems that the BT Speedtester is relatively insensitive to inappropriate MTU/RWIN.
That's one reason why it's such an important tool.
The question is why? Does anyone know what trick they use?
metalblade
Newbie
Posts: 8
Registered: 05-08-2007

Re: Broadband seems slow ????

Quote from: pierre_pierre
where do you get the non BT speed tests from, they dont look correct, i.e. half the BT test, not normal
try  http://www.mybroadbandspeed.co.uk/ The PlusNet one

That is where I got the non BT speed test from.
metalblade
Newbie
Posts: 8
Registered: 05-08-2007

Re: Broadband seems slow ????

Quote from: Barry
When the BT Speedtester and an external speedtester show such a wide difference, the cause is usually incorrect MTU and RWIN settings on your local machine.
Try changing the RWIN/MTU, rebooting your machine (very important!) and then posting your external speedtest results.
B.

Done that and run the Plus Net speed test and todays result shows a marked improvement thanks.
Date Download Speed Upload Speed 
Today 18:07 3711 kbps (464kB/s) 353 kbps (44.1kB/s) Share
Today 01:07 2270 kbps (284kB/s) 353 kbps (44.1kB/s) Share
Today 00:45 2242 kbps (280kB/s) 358 kbps (44.8kB/s) Share
Sunday 22:17 2318 kbps (290kB/s) 359 kbps (44.9kB/s) Share
Community Veteran
Posts: 3,789
Registered: 08-06-2007

Re: Broadband seems slow ????

Glad to help
B.