cable modem uploads slow but speed tests are not

when at my office i download a file from my home pc which is on cox cable modem i get a download speed of 66kbps..
If I run the speed tests at home they show that I can upload at 450kbps..
speed test site i am using is http://www.speakeasy.net/speedtest

i have tried adjusting tcp parameters in the registry and they just made it slower..
what could be wrong..
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Stella PauleyAsked:
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giltjrCommented:
Are you the network person at your office?
Could your office have software in place that is doing bandwidth throttling?
How many users are in your office?
What is the bandwith utilization on your work connection?
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Stella PauleyAuthor Commented:
figured it out..
This has haunted me since the dawn of cable internet... And of course cox could never explain it..

Cox advertises 7m download and 550k upload..

My down tests at 6.2m (good)
But my upload has always been 66k not 500k.. Bugged the hell out of me..

Actually its all in the advertising (Jerks)...

550 kbps = 67.155 KB/s

There's a big difference between a kilobit and a kilobyte....
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giltjrCommented:
You know I was going to ask about 'b' vs. 'B', but since you had little 'b' on both I assumed that little 'b' is what you meant.  Oh, well, your not the first and you won't be the last.  

I've lost count how many times I written one and meant the file. :)
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