The NET-PwrCtrl listed below can be tested.

'No authentication' is on (Settings/User). Login is not required.

Changing the settings is not possible.
'Logbook' shows all switching operations.

Have fun testing.

 My IP Address
NET-PwrCtrl PRO
NET-PwrCtrl POWER
NET-PwrCtrl POWER 19”		 pro Ver. 4.6
NET-PwrCtrl ADV
NET-PwrCtrl ADV POWER
NET-PwrCtrl ADV POWER 19”		 adv Ver. 6.5
NET-PwrCtrl HUT
NET-PwrCtrl HUT2
NET-PwrCtrl HUT2C
NET-PwrCtrl IO
NET-PwrCtrl IO POWER
NET-PwrCtrl IO POWER 19"
in German		 hut  io Ver. 6.5

The Devices have been tested with the browsers:
Chrome, FireFox, Android, Ubuntu, iphone and ipad.