Hello, I had Windows 7 Ultimate 64 bit installed on a new computer for about a week and a half or so, and the internet was running fine with normal download speeds etc. All of a sudden, a couple of days ago my internet started slowing down gradually and eventually to 56k-like speeds. I was able to temporarily fix it by power cycling but it would just happen again. Now it's gotten to the point where even power cycling or anything else has no affect, it's basically slow all the time. The computer in question is connected to the internet via ethernet (connected from modem into router, and out from router to computer) and there's another computer upstairs which is connected is connected wirelessly with a USB network adapter and it is doing fine.
I've reinstalled the OS already a few times, as well as trying a fresh install of Windows XP, but I'm still faced with the same issue. I usually get around 1.2 Mbps downloads but now it barely hits 40kbytes, and the websites take forever to load or they won't load at all. I've also tried downloading the latest drivers, as well as sticking with default windows drivers, still no luck. Safe mode with networking is still slow, and even connecting directly to the modem makes no difference, as well as using a different web browser. Really tried to figure this out for the longest time and it's getting pretty frustrating.
Motherboard: Gigabyte MA-785GM-US2H
Network Adapter: Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
Any and all help would be greatly appreciated, I'm hopeless!