I have had this issue for a very long time. Defiantly since the first version of OME and i think it even goes back several version of ITA. Two of my 10 Poweredge 1955 servers are conflicting with each other in OME somehow. Server 3 will not show up in OME as long as Server 4 is online. If i stop SNMP on Server 4 and run the discovery Server 3 shows up immediately and i can see all the related data for that server. However if i start SNMP on server 4 and run discovery again Server 4 shows up and Server 3 disappears. I have uninstalled and re-installed SNMP and OMSA on both servers with no help. Any suggestions are welcome.