Hello, 
 

I bought this adapter about two years ago and almost immediately noticed that it resets the connection to the 5 GHz network and if I try to reconnect, Windows says that it cannot connect to this network. This is often fixes by restarting Windows or the device in the adapter settings, but sometimes it just refuses to connect for a whole day.

I took it back to the store, where they confirmed the defect and gave me a new adapter, but when I got home I noticed that it had the same defect. In general, I took it to the store two more times and the problem repeated itself. Internet connection must be stable here because my computer is not that far from router

I tried reinstalling drivers, tried different pci-e slots and nothing helped.

Hope some smart guys here can help me solve this.