All you have to do is google Windows 10 wifi problems and you will understand Windows 10 is garbage for Wifi on a lot of computers. Hopefully Microsoft will straighten things out on the next major update.
Some people have reported disabling the LAN adapter in Device Manager helps as 10 gets confused when both are enabled.
Right click the WIFI adapter in Device Manager, select Properties, and under the Details tab select Hardware IDs in the dropdown box. Copy and post the first line. There may be a later driver especially if the chipset is Atheros. Realtek used to have Wifi drivers on their site but for some reason dropped them.
Edit: Also make sure your Wifi adapter is set for using maximum power and USB suspend is disabled.
Microsoft has a full page of fixes for Windows 10 connection problems.
Edited by JohnC_21, 07 December 2016 - 08:20 PM.