Could you please check, hostname is configured with FQDN.
hostname -f must return FQDN.
If the above is not set properly, we need to set the hostname and then retry the backup workflow.
If the above is set fine.
Please stop spl
/opt/NetApp/snapcenter/spl/bin/spl stop
Start in foreground
/opt/NetApp/snapcenter/spl/bin/spl start -f
Watch for any exceptions thrown.
We should be able to see the line
2017-06-22T06:08:38.0000680-04:00 INFO main c.n.s.l.h.RestEndpointHelper - Started RESTful Agent at: https://hostname:8145/
If there are any config issue, we will not see the above line.