WiFi connection dropping between Win 11 laptop and hApAx3 access point

First of all - welcome to the club of happy hap ax3 users:

As for the second - 7.14.3 is working ok, 7.19.2 is unconfirmed and may fix your wi-fi issues or not, and 7.21 alpha “fix majority of AX related wireless issues” as MT staff said but can fubar your router in a beautiful way because it’s, u know, alpha.