This seems to be a general issue with T3U (and not only) wireless adapters. Please also check my reply: https://community.tp-link.com/en/home/forum/topic/258978?replyId=582308 Maybe the details from...

@Solla-topee Hello, I am having same issue for 1-2 months now. It is incredibly annoying the fact that despite this device being sold as we speak, the driver for it is not working ok with the latest...