Comment 18 for bug 977866

Update: My previous post is almost surely a non-issue. I have solved my loss of audio through samba share and traced the issue to the following.

The board I am using on the server end has a Realtek R8168/R81111 ethernet device. Since the default driver for Ubuntu is for R8169 hardware, when a system upgrade is done it can result in the R8168 driver being replaced.

I had upgrade my system from 32-bit to 64-bit. When this was done the R8168 driver was no longer present; only the R8169 is present after the new install.

I fixed this issue by installing the R8168 network driver. Apparently the R8169 driver frequently disconnects and that is what causes the issue with "streaming audio" through the samba share.

I hope this helps others!