The new epics gateways installed to support CA connections between CDS, H2FE and H2PSL LANs enabled an EPICS "loop back" whereby on any LAN both the local IOC and the gateway responded to connection requests. Using the "signore" server ignore argument, these loop backs should now be eliminated.
This solved the problem I was seeing in #1562. Both the h2susitmy and h2susetmy models have been restarted and are running fine.