The latest Samsung devices have a WiFi setting called "Auto Network Switch".  When this is checked, the device verifies Internet access is good each time you connect to a WiFi network.  If there isn't Internet access, the device automatically disconnects.

This causes a problem when trying to connect to routers used with TournamentSR.  In most cases, there is no Internet access (just the TournamentSR pages are available).  Samsung devices therefore cannot connect to the router until the user unchecks "Auto Network Switch".