If a firewall is in use on the failover cluster nodes, configure a firewall rule to allow the coordinator computer to restart ...

If a firewall is in use on the failover cluster nodes, configure a firewall rule to allow the coordinator computer to restart the cluster nodes. To do this, if Windows Firewall is in use, enable the "Remote Shutdown" firewall rule group for the Domain profile on the failover cluster nodes, or pass the -EnableFirewallRules parameter to the Invoke-CauRun or Set-CauClusterRole Windows PowerShell cmdlet. If a non-Microsoft firewall is in use, configure and enable a firewall rule that enables inbound TCP traffic for the wininit.exe program using RPC Dynamic Ports.