Upgraded version now no surround sound

[Arzrite]

Hello,

I haven't upgraded Shark007 for quite some time, but had to due to requirement for the LAV codec.

but now I am not getting any surround sound.
I am connecting via SPDIF and only get 2.1

Sound tests will play rear sounds out the front speaker and nothing comes out the center speaker

Please assist.

[Shark007]

go to the Audio TAB and select SPDIF in the upper right.
The left side is automated, let it be.