My problem that I had 2 computers (similar hardware, Duron CPU, Via chipsets, Via USB Hub). One is running W2k other is running WinXP Home Edition. I subscribed for ADSL 256kb/s service. ISP gave me an Aztech DSL500U modem(using Alcatel chipset). I set up the drivers on both PC and i didn't change any settings.
Then i plugged modem to PC running W2k. Connection speed was 10Mb/s (downsized at ISP to the given speed) and download speed was around 25kB/s (close to limit).
Then i turned off PC and plugged modem to the other one running WinXP. Connection speed was between 1 and 3.4Mb/s and downloading the same file from the same location happened on 13kb/s.
Then i checked settings with TCP/IP Analyzer. All numbers were the same...
Any idea what made the difference? I checked up registry HKLM/.../Tcpip/.../Interfaces/.../AtmArpC/MTU was 9180 on both machine. I can't find any obvious difference in settings.
I can post screenshots about my WinXp settings if it helps.
Thanks for any idea.