I have 4 devices in my home on a 60 megabit connection. My wife's computer and both phones run as they should my windows 10 machine runs around 5 megabits but on occasion tests at over 60 and then drops right back to 5. I have updated drivers I have unchecked the box that allows the computer to put the network adapter to sleep. I have uninstalled the network adapter and reinstalled it. All to no avail...I'm sue I'm leaving out something I have tried but any advice is appreciated.