GB network KB speeds

Originally Posted by TheN00b 

It really depends on your ISP, and/or how many hops (routers/switchs) the data bits go through, and/or how much total bandwith your routher is taking up with your running applications via active ports on the router, and how much bandwidth you actually have depending on your ISP Service Plan. If you infected your PC with a Worm, sometimes Spyware, that could be slowing down your connection, but you also would notice other things that would seem weird about your PC (like random pop-us, windows explorer slowing down, etc.). It also could be server related, maybe the server is a old or popular server and the load is already to much for the server, so sending files might slow to a crawl. It could also be that when you are downloading the files your HDD is actually writing the files slower than the actual download so the dialog prompt tells you what your HDD is downloading/writing at instead of you actual speed, usually this is not the case though.
In the big scheme of things it really could be a lot of factors and you only can be sure of certain issues by running your Anti-Virus software in either safe-mode, or by a bootable CD/USB with Anti-Malware Software on it (OS). If your PC is clean and there is no infection, then try stopping some start-up applications with msconfig at either the command prompt or run.exe window. If all else fails contact your ISP to see if they are experiencing any problems with their local equipment, and/or find someone who can troubleshoot your PC.