Having erratic network speeds and have come to the end of ideas for troubleshooting. Basically I have a wired connection that when downloading files starts off slow and slowly builds speed then will suddenly die at that point it will start to speed up again and then die. This just keeps happening until the connection gives up (goes to zero and stays) or the file is downloaded. Watching the network graph looks almost like a heart monitor with its rises and drops.
The system is an MSI P6N NForce board with built in NVidia gigabyte ethernet card. The problem happens on Windows Vista and Windows 7 (RC1) but works fine when XP is used. I also have tried installing a different network card (DLINK PCI 10/100) and see the same problem.
Things I have tried...
- Turning off receive side scaling, flow control, congestion providers and a few other tcp stack settings available via "netsh"
- different cable
- different router
- reinstall both Win7 and Vista
- Microsoft provided drivers and supplied drivers both for the (Dlink and Nvidia cards)
Has anyone seen this sort of thing before? Is there anything else to try before I pull my hair out? The only thing that works is installing XP then everything runs like a champ at full speed with a solid connection.