Too much time taken to populate the list of NetBackup master servers
If it takes too long to display the NetBackup master server list, validate the master server using the option on the plug-in's Veritas NetBackup page. If the validation reveals an error, contact the NetBackup administrator and check the vSphere Web Client Virgo logs at the following location:
Linux: /storage/log/vmware/vsphere-client/logs/vsphere_client_virgo.log
Windows: C:\Programdata\VMware\vSphere Web Client\serviceability\logs\vsphere_client_virgo.log