Galaxy S9 not casting to anything anymore

[FurtherHigherStronge]

Hello,

My S9 won't see any casting device anymore since a couple of weeks. No apps can manage to connect to FireTv, to TV directly (Samsung), to XBox. No differences with alternative WiFi.

#WTFareyoudoingSamsung?

[BandOfBrothers]

Try a soft reboot by turning your phone Off and On. 

Also try clearing your phone's System Cache Files by turning your phone Off and then from a set series of button presses go into the phone's System Files and clear the cache. No information is lost this way.