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  1. #1
    3 Star Lounger
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    slow internet connection

    Please move this post to where you consider best. Set up has been a single Dell desktop XP home connected to ISP via usb modem download speeds are constant and near maximum for the service (1MB) stable with very few disconnections. Bought a new laptop (Toshiba) with Vista home premium, wireless built in so now want to share the ISP connection and set up a home network. Dell had NIC internal PCI card so got a wireless adsl modem/router and connected Dell via cable to modem/router and Toshiba via wireless from the router. All seemed good but after a couple of hours use with no particular pattern the internet speed just drops to a crawl and virtually locks up. Can use machines either singularly or together any combination seems to make no difference. This has been on goin for 3 weeks and I'm lost as to what to try next. Have tried the following: Bought new network cable, changed PCI slot for NIC card, bought new NIC card, turned off Zone Alarm and used Windows Firewall, tried with no Firewall,(only for a couple of minutes to se if that was blocking the signal) bought new modem/router, tried re-boots, resets, tried tuning off wireless on router and connect by cable to either computer, still the speeds will drop and fluctuate. If the speed drops and I immediately go back and connect via usb modem to either computer the speed shoots up near max again. ISP support are baffled saying it has to be a hardware/software conflict but have no suggestions other than what I've tried. Any ideas?

  2. #2
    Silver Lounger
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    Re: slow internet connection

    Jeff,

    First of all, I presume you secured your wireless network (enable MAC filtering, enable WEP or, better, WPA encryption, turn off SSID broadcast, etc.)

    Then, I would recommend on your wired NIC set link speed and duplex to 100/Full, not Auto.
    If the problem persists, try to use diagnostics tool, for instance, from KB914440.

  3. #3
    3 Star Lounger
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    Re: slow internet connection

    Yes to WPA encryption /SSID broadcast. Not sure of MAC filtering as let router configure automatically but will look into this. NIC link speed and duplex is set to auto so have changed that. Will report back probably in a day or so as away from home for while. Meanwhile have been sailing along OK using the old dial up usb modem but only able to connect 1 computer at a time for internet use. Is the diagnostics tool the same as "Diagnose connection problems.." in the tools menu of IE7?

  4. #4
    3 Star Lounger
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    Re: slow internet connection

    No difference from trying the above suggestions nor by further suggestions from ISP support i.e switching the wireless channel from 11 to 5 (in case of iterference) lowering the MTU to 1400. Tonight the same problem occured while using the main desktop with the NIC and what I've done is disconnected the network cable from the router and am using the laptop connected via wireless signal and the speed is just fine. I now wonder have I fitted the NIC in correctly or not configured it in some way. I put it in a PCI slot let windows find the driver etc and checking properties in device manager it says this there are no problems. When the desktop boots up it says "connected through LAN" on the little ballon on the taskbar, Would that be correct? Diagnose connection problems tool in IE7 if I run that reports you are succesfully connected! Dont give up on me yet please loungers <img src=/S/confused3.gif border=0 alt=confused3 width=45 height=45>

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