Clusters running on SFWHA 5.1SP1 or 5.1SP2 configured with virtual IP addresses cannot migrate to VIP-less communication (2845412)
If you have already configured clusters running on SFWHA 5.1SP1 or SFWHA 5.1SP2 with virtual IP addresses, these clusters are not able to participate in VIP-less communication by setting the ClusterAddress attribute to null.
Workaround: No workaround.
Related information