Can you make sure that both side your internet is not on Tor?
From my testing, when the switch is on the right side, the admin page is still there due to browser cache. Merely F5 doesn’t make it disappear. Using Shift + F5 then the page disappears.
For the button, you can ssh to the router and check the status. You can find out how the switch status is detected in /etc/init.d/initswitch