SMB v1 doesn't seem to work after upgrading to U2

I know this has been discussed over and over That said, I am not able to get it working. In U1, I was able to set the system tunable and everything worked. When I upgraded to U2, this no longer worked.

Here is my tunables



I also tried setting the min protocol in the SMB service



Is there some other magic setting I am missing?

Note: The reason I need this to work is that I have several embedded systems running...

SMB v1 doesn't seem to work after upgrading to U2