To turn my tablet off normally takes a long press of the power button. Recently when I try try this I get a message saying "I couldn't connect. Check your network connection and try again" and it won't turn off.
I have factory reset, but it is the same. I think that it is something to do with Bixby. This tablet does not have a dedicated Bixby button!
Please can you help me with this. I don't always have access to Internet.
@Vagrantuk: That's strange. As a workaround, can you try swiping from the top of the screen to the bottom, then again to enlarge the Quick Panel, and select the Power button in the top right corner to bring up your power options?