There is installation guide along with the driver from support page. And there is this: https://www.tp-link.com/en/faq-1076.html

Does your other device like mobile phone, tablet can connect to the hotspot? Shut down/uninstall firewall, antivirus if any, reinstall the adapter driver, if it can connect, then you can enable...

You can just uninstall the utility, then install it again. Find the utility link on the tplink website, https://www.tp-link.com/en/download/TL-WN822N_V3.html#Utility

That adapter is equipped with dual band antennas. If you want to change antenna, you need to change all three dual band antennas

Connect the receiver to your router directly, or to other network to see if such problem happens. If it only has problem with the tplink, could be compatibility issue. Better contact tplink support...

Can you post the screenshot of the Addresss Reservation page here? The maximum number is 16. felthamn wrote Model : Hardware Version : Firmware Version : ISP : For some reason, I am unable to reserve...