Cannot add NTP server when using custom service policy

Applies to

• ONTAP 9.10.1 and later
• Network Time Protocol (NTP)

Issue

• You cannot add NTP server when using custom service policies for the management LIFs:

Cluster::*> ntp server create -server x.x.x.x       
  (cluster time-service ntp server create)

Error: command failed: Connecting to NTP server "x.x.x.x" with address
       x.x.x.x failed with reason: "Network is unreachable"

Cluster::*> cluster time-service ntp server create -server my.ntp.server.com

Error: command failed: Connecting to NTP server "my.ntp.server.com" with
       address x.x.x.x failed with reason: "Network is unreachable"

• You can ping the NTP servers using the management LIFs.
• The admin Vserver/SVM network routing is correct.
• The management LIFs are using a custom LIF service policy.  

cluster1::> network interface show -role *mgmt* -fields service-policy 
vserver  lif          service-policy 
-------- ------------ ------------------ 
cluster1 cluster_mgmt ssh-mgmt
cluster1 node_mgmt1   ssh-mgmt 
2 entries were displayed.