@Solla-topee i solved the problem.. my adaptor is working fine.. i downloaded Ookla net speed test on my laptop.. and teste the net speed.. and surprise.. 250 mb download... I think something from my...

Hy all. i am having problems with my archer T3U speed. I have a Asus x453ma laptop, upgraded to 8gb ram and 125gb ssd with win 10 pro and my wifi speed with the adapter plugged in wont exceed 60-70...