Thanks Scotty, I figured it out. It is stupid simple.
When the Linksys router was connected I was opening the "view wireless networks" screen, selecting the music server and selecting "connect". That worked fine to disconnect Linksys and get me connected to the server but never made it a priority. Then I tried something different. With the Linksys connected I opened "view wireless networks" and disconnected the Linksys before connecting the server. When I selected disconnect for the Linksys, I got a message that if I did that Linksys would no longer be the priority when I restarted. Well, that was exactly what I wanted to happen.
I never manually disconnected Linksys before because connecting to the music server automatically disconnected from Linksys. I was thrown off by the screen "change the order of preferred networks" that did not function. I kept trying to make that work.