You can disable the USB Selective Suspend in the device manager.
1-Right-click on Start and select Device manager
2-Expand Universal Serial Bus controllers
3-In this list, there are usually quite a few USB Root Hubs and USB controllers. Unless you know exactly which one your device is plugged in to, then you will need to perform this change on every hub and controller listed here
4-Right click a Root Hub and click properties
5-Select the “Power Management” tab.
6-Uncheck the “Allow the computer to turn off this device to save power” setting and click OK.
7-Repeat as needed for the other USB Root Hubs/controllers.
Found this method on a forum about the option not being in power settings.
Otherwise; you can use wifi and not worry about it. 