@Nonie0301
Not uncommon when sharing public wifi connection like at a hotel. Most likely trying to cast/mirror to your Roku device. Try Settings..System..Screen Mirroring..Screen Mirroring Mode.. set to Never Allow.
Also check under under Settings..System..Screen Mirroring..Screen Mirroring Devices that no devices are currently allowed. If you see one listed, just remove it.
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102