No sign of CFOSspeed, and yes I did boot with a USB drive. Disabling IPV6 does not do anything either. I tried disabling Windows Autotuning but that also did not help.
Recently acquired new system, however, the download speeds are 1/5 of what they normally should be. My other devices, my old system, and roommates devices all get around 200-300 Mbps download, (300Mbps ISP).
However with a fresh install (and even reinstall) of Windows, and even a dual boot with...