Black Mamba @Thoyaupie12 reset/reboot the TV-Box and also the Internet-Box (router) thanks for the feedback
Gaeilgeoir @Thoyaupie12 The new TV-Box 5 has a button at the bottom labeled +. Please press it, this is the so-called WPS button with which you can connect to the Internet. The others also have such a button, you would have to look where it is.