I've been using the 1247B successfully for a number of years.
All of a sudden, when I connect the 1247B to my microsoft surface pro 6, with Windows 11, it is not showing up as a sound device.
I tried the same device with my Dell Desktop, and Windows 11, and it works fine.
Sound device setup with Windows can be a challenge. Any suggestions would be appreciated.
Arnie
W2HDI