When replicating between ESX hosts, jobs fail with the error above. Some VMs replicating to the same destination host may succeed.
One of the source hosts does not have DNS properly configured. This host is unable to replicate to the destination hosts if the destination hosts are entered into vCenter by name.
Use the replication log files to determine the source host of the failed replications. Select that host in vCenter, and click on the Configuration tab. Enter the proper DNS servers under DNS and Routing.