seems it does not support ubuntu, even there is no driver on tp-link official website.

michel.kamp@hotmail.com wrote Thank, But the answers are still to blurry , Coming soon , is that within 2 weeks , 6 month , 1 year ??? come on guys you all know that 'coming soon' is a sort of...

TL-WN823N does only supports 2.4GHz not 5GHz network. Of course, you can't connect to 5GHz with it. In your case, you need a dual band wireless adapter.

try to download the driver from tp-link official website and reinstall it manually.

How about the signal of 5GHz connection? Have you changed wireless channel? The most important thing is to check the negotiatation speed of 5G connection on your computer.

Hey, you need to repair the network with your net router. here is an instruction for reference: https://www.tp-link.com/us/faq-1089.html Note: before you repair them, press 10s one by one to leave...