I've just installed Retrospect Client 6.2.229 on a serious of 10.5.4-based Intel Macs. There seems to be odd behaviour with the ability to multicast to the Server. I have not had this kind of problem before. My Retro Network browser cannot find my clients... which are all online with the Retro client showing a status of "ready".
I can't get the subnet broadcast to work either. Addresses are 10.123.88.x/255.255.248.0.
The clients were showing immediately after install and before the restart. Since then they do not automatically show up. I have to add my address and this will become a problem when their DHCP lease runs out and they may change IP. I've already lost over 10 clients already to changing IPs.