As per some other recent posts, I have run into a system freeze problem that seems related to WiFi and recent updates. Unable to obtain INXI details as system becomes unresponsive before I can try. WiFi is constantly trying to connect, system settings presents as a completely empty ‘box’.
Removed WiFi card (Asus AC56!), used a dongle to install Kernel 67. Reinserted card and restarted, Bingo!