1) Open im_ps.conf for Provisioning Server which is available at the following location:ProvisioningServer/data
2) Add the following property file: TLSProtocolMin “TLSv1_2”
3) Restart the Provisioning Server for the changes to take effect.
By making the TLS v1_2 as minimum will not only disable TLS 1.0 and 1.1 but also SSL 2.0 and 3.0