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.
he is talking about his home network, not his internet.
Kluit, i would be willing to bet part of the problem could be the network adapter or its drivers. After previously using TP-Link network adapters i would caution anyone away from using them. On the pc with the TP-Link adapter, try to reset the network tcp/ip stack and make sure your drivers are all up to date. Does the PC in question not have a built in Ethernet adapter?
To reset the network stack, open a command prompt window with Admin privelages and type: netsh int ip reset
Let it finish then reboot the PC.