Hopefully it will help someone else. One thing I have not figured out yet is why I now can't just go to the "Video" icon and drill down through the "WD Hub" to choose the video's on the Hub any longer.
When I do now, I get a network error. This is new just since moving the WD + to the other switch. It is for sure "seeing" the Hub because I can go to the "Network Shares" icon and drill to my movies on the Hub just fine.
I have tried rebooting both units and it didn't help. Both units pass the network tests. Any ideas?