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Old 28th August, 2006, 06:56 AM
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Broadband speed question.

OK, my ISP says i have 4megs down speed, but when i download something, say from here which should have great speed, when the download starts the speed is at like 1200 for a second then quickly drops to like 200-300kbps average. It does this most everywhere i download from. Is this normal or should i be getting more speed? I am set up through a home network, and my cable modem is kinda old, but should that matter? My network connection on my computer says it is connected at 100mbps, but it seems to me like i should be getting more speed than i am. Those who are wise in this area please give me some answers.
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Old 28th August, 2006, 07:54 AM
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4mb downstream means it transfers at a rate of 4 megabits per second. Or 4000 kilobits per second. There are 8 bits to a byte. So therefore, the theroratical maximum speed of your downstream is 500 kilobytes per second. Which usually gets cut up based on line quality, other users etc etc.

The 1200 kb/s a second when downloads start is the modems built in buffer.

The 100mbit on your network connection is the speed of the computer to the modem, not the modem to your ISP.
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Old 28th August, 2006, 11:34 AM
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4mbps = 4096kbps so therefore your highest possible speed is 512kb/s i should think. But with transmission overheads and line quality i would be thinking more like 470kb/s. I think your ISP isn't providing you with the right speed, ring them up and tell them what you've done in terms of testing.
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