Hello again,
do you use SNMP or WBEM for your servers? If the servers worked with SNMP with the old setup and this is the same server/ip adress the SNMP discovery should have worked. If i look at the log you don't have a valid SNMP co munity and or the ip adress of your SIM ser er is not allowed to connect to the servers.
If you want to use WBEM you need to set this up. For both options you can use the repair option available in SIM. The one thing that you do need in this case is credentials for the remote servers to set the SNMP or WBEM.
If you want to know how to run a repair let me know.