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Standard User philnoon
(newbie) Sat 05-Mar-11 18:36:52
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ADSL: upstream speed higher than downstream


[link to this post]
 
My brother has a very poor connection - 140kb downstream according to the BT speed test.

The upstream speed however is reported as >400kb.

This seems very strange to me but on the phone, BT seem to think its normal.

Can anyone explain to me why the download speed would be so awful while upload remains pretty good?
Standard User john2007
(legend) Sat 05-Mar-11 18:42:31
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Re: ADSL: upstream speed higher than downstream


[re: philnoon] [link to this post]
 
Upstream uses lower frequencies than downstream and is less susceptible to interference.

http://en.wikipedia.org/wiki/File:ADSL_frequency_pla...
Standard User Ribble
(learned) Sat 05-Mar-11 18:48:24
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Re: ADSL: upstream speed higher than downstream


[re: john2007] [link to this post]
 
Nah, probably because the connection is soo unstable that the IP profile has been knocked right down


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Standard User yarwell
(sensei) Sat 05-Mar-11 19:17:46
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Re: ADSL: upstream speed higher than downstream


[re: philnoon] [link to this post]
 
what is the connection speed shown by the router or by speedtester.bt.com (as opposed to a speed test result)

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
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