Are you using WiFi or are you connecting with an ethernet cable? If WiFi, check the signal strength when you select the Access Point in the network setup. If you have less than 3 bars colored in, your signal will be unstable and your TV will will lose the settings. Your router may be too far away from the TV to have a strong signal.
Hope this helps,
Hello! my family has just bought this TV.
When we want to connect to internet, it asks the password. We type it in, and the connection goes perfectly until we shut off the tv.
When we turn it on again, and access to the smart hub or everything else connection-related, it asks us again the same password for the same network! is there a way to save it, and autoconnect every time? (or at least connect manually but with a saved password?)