I have a Rosewill RNX-N1/N1MAC, which is about 5 yrs old, and also a Netgear a6210 (802.11ac Dual Band with High Gain Antenna) which I bought about 1 yr ago.

BTW, can you go to your Device Manager...

I've had an on-going problem as documented here:
Wifi loses connection every few hours (tested on 2 diff wifi adapters)

It sounds like a very similar problem to what many others have reported...

Just tried this... no dice =(

Still the same old pattern of disconnects every few hours

I've had experience this problem for a while now on my newly built windows 10 rig. Every few hours, my Wifi simply stops working; the connection is lost. Sometimes it reconnects after a minute or so....