Hey,
There's no real easy way to help you via forum posts. IF you'd like, I can help you via Skype this Sunday, since we have no BeoTalk podcast this weekend.
If you consider this offer, please have Skype and latest version of TeamViewer installed on your computer that is on the same network as all your BeoGear. We can get it sorted in few hours, I'm sure.
Looks to me that all the Converters lost their proper configuration. From the system you describing, there can't be that much wrong with it, unless the installers did a messy job.
PM me if you'd like the help....
Willie