Can't get my Roku remote ony phone to pick up my streaming stick I got new modem

walkerlee1217, if you got a new modem/router your phone app won't work.  You need to get the stick connected to the new network in order for the app to work and to do that you'll need a physical remote (a Roku Voice Remote).  Alternatively, if you can change the settings on the new router to match the old one (same SSID/network name and password) then the stick should connect and then you'll be able to use the app again.