I have purchased a PCI NIC to see if changing the hardware did anything (in case of failing on-board NIC).
The only thing that restores my proper speeds are disabling/re-enabling the device or using driver install to reset the drivers. Indicates the TCP/IP stack might be getting corrupted, but it happens frequently.
Other machines sharing same network for their internet connection are experiencing no problems at all. (2 laptops over wifi and a roku3). This machine is wired-in to the router.
I have no idea how to troubleshoot this any further than I have already. Perhaps there are remnants of malware present messing about with my networking software?
Edit: Topic moved from Windows 7 to AII ~ Computerxpds
Edited by computerxpds, 26 March 2015 - 10:46 AM.