on my rut950, latest FW 7.032, it is possible to lock yourself out quite fast.
The menu on the right side shifts out and you can tap on the Wifi sign. Nobody nows what is happening after the touch. Turn off or configuration?
Then you are screwed without an patch cable, Laptop and maybe a long ladder.
It would be nice, if you could trigger a hint like: If you turn off Wifi, you will loose your wifi connection.
-Turn off wifi or -cancel