Question Distortion have to change settings

[Bluesguy22]

Got Dell PC with a Soundblaster Z card. Just running as 2.1 in my music studio. Win 11. If I stream my Amazon or others after about 30 minutes I start to get distortion. Scratchy hisssy distortion. I have to go to my settings and change it to another rate and it stops. I can immediately go back to the previous or leave and it will play for a while but then do it again. The system is only streaming audio not running any processor hungry DAW stuff, just the stream. Normally run it at 24/48k.

Updated drivers, uninstalled reinstalled to no avail.

Any ideas?