Asus Zenbook Duo with Realtek Audio Driver not working when using Aux cable to Plug into JBL Bar 5.1

I have an Asus Zenbook Duo with the RealTek audio drivers and I plug in the Aux cable to my JBL Bar 5.1. When I test the audio it plays for two seconds but they the sound stops and doesn't work. Same thing when I use the computer speakers as well.  I already tried changing the Audio Enhancements to Off.  Can anyone please help?