@Tony I will try that and windows reinstallation. If that doesn't help I will contact store for RMA. Problem is that store is in another country and if they on service can't find problem (problem...

I have TP-LINK TL-WN822N V5 wifi adapter. Problem is that after some time I got in right corner of taskbar on wifi icon exclamation mark (no internet connection) and only fix possible is to reinstall...