I know this is an old thread, but I experience just that on my PC, a high middle speed variance. I know it is not my router or internet connection, because all other devices and even my phone on Wifi will give me a down speed result double of my PC. I have inserted the HDD from my son's PC, which is the same OS as I have, in my PC and then I also get a high download. Since have I already reinstalled OS several times, tried other OS and other HDD's, but I always get the high middle variance ( +100% by the way) FYI on all my devices connected over LAN or Wifi I'll get ~14Mb to London server, on my PC connected by LAN and very close to the router I get ~7Mb. Right now I have a new disk with new installed OS and almost no programs installed, but still get the low speed, so how do I find out what gives me this high middle variance? When I insert my son's HDD in my PC I'll get 16Mb easily.