I have a Galaxy S6 Lite. It suddenly quit connecting to the Internet. There was an exclamation mark next to the wifi signal icon in the top right of the screen. Checking the connection showed "Connected No Internet". I searched everywhere and got all kind of advice that didn't work. Setting the date and location, resetting the tablet, and a few other methods. Nothing helped. So after trying the other things I went to Settings > Connections and clicked the gear icon next to my router's name. On the next page, below "Auto reconnect" and "Manage router" I hit "View more".
Changed Mac Address Type to Tablet MAC. Internet connection returned.
