I am preparing to move a server from NetWare 6.5 to OES 2015 SP1 and have run into this error during the eDirectory Precheck phase:

Error: Failed to get source server hostname in fully qualified domain name form.
In the log messages below, this is the message:

ServerIDSwap:Precheck:Failed to resolve Source Server Host Name from IP Address. Correct the name resolution and re-run the precheck step.
I can ping the correct hostname, any idea what I am missing here?