Troubleshooting Tip: Virtual Server Type greyed out

As shown below, the Type option is greyed out.

The following error is shown when attempting to change the type in the CLI: 

config firewall vip

    edit Virtual_Server

        set server-type ssl

end

can not change server-load-balance vip's server-type! This object is being used.
object set operator error, -651 discard the setting
Command fail. Return code -651

The reason is because the Virtual Server has references. In this example, the Virtual Server is being used in a firewall policy #16.

To find the reference in the CLI, run the following command: 

diagnose sys cmdb refcnt show firewall.vip.name Virtual_Server

entry used in table firewall.policy:policyid '16' entry dstaddr:name 'Virtual_Server' (From VDOM: 'root')

To change the Virtual Server Type, remove it from any references. 

After removing all the references, the button is not greyed out anymore and it will be possible to change Type.