The connectivity to the following services requires Internet access to the specific URL and the port. If the vRealize Network Insight platform is behind an Internet proxy, ensure that you whitelist the following domain names and ports:
Upgrade Service/Metric Service
Support Tunnel Service
Ensure that you take a backup of the Platform1 node before you create clusters. Refer to VMware best practices to take the backup of virtual machines (like VMware VDP using VADP). Restore the Platform1 node from backup if there is an unrecoverable error while creating the cluster. It is recommended that you use cleanly deployed platform nodes while creating clusters. Redeploy the new platform nodes (p2-pn) before restarting cluster creation process if there is an unrecoverable error.