so more quick info. I have both the hostname and IP imported into DP CM.
using the name from the command line fails.
C:\Program Files\OmniBack\bin>vepa_util.exe command --check-config --virtual-env ironment vmware --host vcenter.my.company.com
Error(s): No such host is known*RETVAL*8010
Using the IP from the command line succeeds
C:\Program Files\OmniBack\bin>vepa_util.exe command --check-config --virtual-env ironment vmware --host ip_addess
*RETVAL*0