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speed issues can someone clarify for me
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- speed issues can someone clarify for me
speed issues can someone clarify for me
14-02-2008 2:48 PM
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Hi Guys,
Do I have speed issues? Why is the LA and NM so different between down/up? Is it not a single cable (2 Cores)
info from modem
ADSL Link Downstream Upstream
Connection Speed 3776 kbps 448 kbps
Line Attenuation 48 db 13.5 db
Noise Margin 14 db 24 db
results from speedtests.net
TEST_DATE DOWNLOAD_SPEED UPLOAD_SPEED LATENCY SERVER_NAME DISTANCE
27-05-2007 965 kb/s 236 kb/s 507 ms Maidenhead ~ 150 mi
03-09-2007 952 kb/s 366 kb/s 659 ms Maidenhead ~ 150 mi
03-09-2007 950 kb/s 366 kb/s 487 ms Maidenhead ~ 150 mi
04-09-2007 952 kb/s 299 kb/s 65 ms Maidenhead ~ 150 mi
04-09-2007 953 kb/s 291 kb/s 59 ms London ~ 200 mi
12-10-2007 485 kb/s 364 kb/s 80 ms Maidenhead ~ 150 mi
14-02-2008 129 kb/s 359 kb/s 917 ms Maidenhead ~ 150 mi
14-02-2008 112 kb/s 14 kb/s 3626 ms London ~ 200 mi
14-02-2008 57 kb/s 17 kb/s 974 ms Sittingbourne ~ 200 mi
14-02-2008 107 kb/s 166 kb/s 49 ms Maidenhead ~ 150 mi
14-02-2008 129 kb/s 380 kb/s 58 ms Maidenhead ~ 150 mi
results from mybroadbandspeed.co.uk
Download speed (kbps) Upload Speed (kbps)
129 244
130 245
results from BT
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 135 kbps
DSL connection rate: 448 kbps(UP-STREAM) 3776 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 99 kbps
If you wish to discuss these results please contact your ISP.
Thanks in advance
Ian Lipscomb
Do I have speed issues? Why is the LA and NM so different between down/up? Is it not a single cable (2 Cores)
info from modem
ADSL Link Downstream Upstream
Connection Speed 3776 kbps 448 kbps
Line Attenuation 48 db 13.5 db
Noise Margin 14 db 24 db
results from speedtests.net
TEST_DATE DOWNLOAD_SPEED UPLOAD_SPEED LATENCY SERVER_NAME DISTANCE
27-05-2007 965 kb/s 236 kb/s 507 ms Maidenhead ~ 150 mi
03-09-2007 952 kb/s 366 kb/s 659 ms Maidenhead ~ 150 mi
03-09-2007 950 kb/s 366 kb/s 487 ms Maidenhead ~ 150 mi
04-09-2007 952 kb/s 299 kb/s 65 ms Maidenhead ~ 150 mi
04-09-2007 953 kb/s 291 kb/s 59 ms London ~ 200 mi
12-10-2007 485 kb/s 364 kb/s 80 ms Maidenhead ~ 150 mi
14-02-2008 129 kb/s 359 kb/s 917 ms Maidenhead ~ 150 mi
14-02-2008 112 kb/s 14 kb/s 3626 ms London ~ 200 mi
14-02-2008 57 kb/s 17 kb/s 974 ms Sittingbourne ~ 200 mi
14-02-2008 107 kb/s 166 kb/s 49 ms Maidenhead ~ 150 mi
14-02-2008 129 kb/s 380 kb/s 58 ms Maidenhead ~ 150 mi
results from mybroadbandspeed.co.uk
Download speed (kbps) Upload Speed (kbps)
129 244
130 245
results from BT
Test1 comprises of Best Effort Test: -provides background information.
IP profile for your line is - 135 kbps
DSL connection rate: 448 kbps(UP-STREAM) 3776 kbps(DOWN-STREAM)
Actual IP throughput achieved during the test was - 99 kbps
If you wish to discuss these results please contact your ISP.
Thanks in advance
Ian Lipscomb
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Re: speed issues can someone clarify for me
14-02-2008 2:57 PM
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Up and down use different frequency ranges which have different affects to the copper wire used for phone lines. So you will get different line attenuations and SNR figures. It is perfectly normal.
As for your speed tests, these are being affected by the IP Profile figure which governs the speed at which data will be allowed to transfer at over the BT network. Given you higher DS sync rate it looks like you may have re-synced at a lower speed recently and the exchange has decide to limit your data throughput. Your normal IP profile should be 3000 with your current sync rate.
You will have to wait 3 -> 5 days to see if the IP Profile figure increases but it does depend on you remaining at the current or higher sync rate. If it re-syncs lower again the 3 -> 5 day timer starts again.
As for your speed tests, these are being affected by the IP Profile figure which governs the speed at which data will be allowed to transfer at over the BT network. Given you higher DS sync rate it looks like you may have re-synced at a lower speed recently and the exchange has decide to limit your data throughput. Your normal IP profile should be 3000 with your current sync rate.
You will have to wait 3 -> 5 days to see if the IP Profile figure increases but it does depend on you remaining at the current or higher sync rate. If it re-syncs lower again the 3 -> 5 day timer starts again.
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Re: speed issues can someone clarify for me
14-02-2008 3:26 PM
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Thanks Peter,
That clears up a few things for me, guess i'll have to suck it and see for the moment.
Regards
Ian Lipscomb
That clears up a few things for me, guess i'll have to suck it and see for the moment.
Regards
Ian Lipscomb
Message 3 of 3
(414 Views)
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