Question Wireless network card losing connection

[Muszyn]

Hi, recently i've bought a new PC which is connected by Ethernet cable and after opening browser or joining some multiplayer game im losing connection in my other PC with wireless network card, other wireless devices etc. works correctly...

My network card - TP-LINK TL-WN722N
My router - TD-W8970 v1

 

[Grobe]

Is it only in games, or does the issue also affect other things, like watching youtube etc? What does speedtest (or similar service) give about the actual performance ?

 

[Muszyn]

Is it only in games, or does the issue also affect other things, like watching youtube etc? What does speedtest (or similar service) give about the actual performance ?

Yeah, it's losing connection while watching youtube too, other wireless devices working normally.

 

[Grobe]

What hardware? Could you have another WiFi unit on the same machine?

Does the WiFI dongle get hot during operation ?