I have my Archer AX11000 setup and working pretty well but I have intermittent Wifi 6 device connection issues where the saved Wifi network tries to connect and it just sits there saying checking connection, and it never connects.

Other times it connects, says Connected, Secured - but No Internet - when all other users connected are fine. Have tried various troubleshooting but not sure how to diagnose further.

Out of interest both affected devices are Dell Laptops, one Win 10, one Win11.