We have some clients with the admin console already installed.  They need to be modified to point to our production server.  I updated the package that installs the console, and changed the defaultsiteservername to the prod server.  However the old server still opens. 

Sure I can just tell them to connect to the prod server, but shouldn't I be able to modify this in a package?  I do see an adminui\connection reg entry.  Do I need to modify this?