I have recently purchased a small wifi adapter, so that I can use internet on my desktop PC via WiFI. 

Wifi keeps reconnecting or shows that it is connected but no page can be loaded. I was successful to load only one or two pages before the connection was lost again.

I am using Windows 10, 64 bit version, and I have installed official driver from a site.

Signal should be also sufficient, because when I instal the same adapter with same driver on my laptop with same OS, internet is working perfect even in the further closed room.

Thanks.