@derzocker0202 thanks for the fast reply. I dont know with other devices I dont have such a issue I tried setting the Router different however I only have auto or 20mh or 20/40mhz for the 2.4ghz...

I had the same Problem as the people from this thread here "My wireless wifi adapter n usb Tl-wn823n tplink isnt reaching 300 mbps - Home Network Community" I dont understand does this mean you put...