No, when you press the Power button in activity, your Prestigo switches off the devices that participate in the activity. If one of the devices is not switched off correctly, try selecting a different function to switch off this device in the settings for this activity. To do so, click the activity, then click 'Settings' and select the device that does not switch off. In the following screen, select the command that should be used to switch off the device. If all the solutions provided above do not solve the problem, please chat with us (at the upper right corner), call consumer support, or contact your retailer.