Bluetooth speaker shows paired and connected, but it's not working

I have a Dell Inspiron 5555-15 and a Samsung HW-J250 Soundbar.

I have had no trouble pairing and connecting the soundbar to my old Dell Inspiron N5030-15, but I have not been able to get it to work with my new laptop.

It shows paired and connected on the Bluetooth connection screen on the lapotop as well as on the soundbar, but the sound is still coming through the laptop speakers. The speaker icon on the laptop shows it's still connected to the Realtek (laptop) speakers. I went into Audio manager and changed the default audio output to the Soundbar. That changed what the icon said (to the soundbar) but it's still playing through the laptop speakers.

Any thoughts on this would be appreciated.