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Reason for different internet connection speeds?

By charvey
Nov 15, 2005
  1. My roomate and I both connect to NetZero on the same phone line with computers which each have a 56K modem. My connection speed is always 115,000 while hers varies between 36,000 and 45,000. I can obviously surf much faster on my machine, but why is that?
  2. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    The connection speed of "115,000" is the serial line between your computer and your modem, it has nothing to do with the speed between your modem and your ISP.

    Can you really surf faster than your roommate? Try some internet speed test, preferrably one supplied by your ISP.
  3. Sharam

    Sharam TS Rookie Posts: 509

    From CITES's Dialup access troubleshooting

    I believe you when you say you experience faster page loads and all, you should! But the difference is not from 36,000bps to 115,000bps.
    36,000bps to 45,000bps is actually not bad for a 56K modem, but I accept no less than high 40s to low 50s.
    The chances are your modem is operating at its best at around low 50s.

    Assuming you both have the exact same computer, the reason for different connection speed and/ or surfing speed would be your roommate's Modem, configuration and/ or drivers. If you were to put your modem in his/ her system, things would be the other way around.

    Even if both modems are the same, his/ her system, configuration and setup as well as presence of any malware or virus could cause different results (mainly in surfing)

    One other factor is the phone jack, assuming the system’s configuration, setup, modems and drivers are identical, if a jack is defective or there is a short, that could cause different results as well but with phone lines, this should affect all the jacks connected to the same pair of wires but then again it could be the receptacle.

    Assuming the OS is setup properly with all drivers (including chipset), I have seen changes in initial connection speed just by changing one or more of the following:

    IRQs and ports
    Configuration (initialization strings and such)
    Different cables or jacks
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