Dell EMC AX4-5I Hardware Installation Manual page 48

Table A-1. General Cluster Troubleshooting (continued)
Problem
Public network clients
cannot access the
applications or services
that are provided by the
cluster.
48
Troubleshooting
Probable Cause
One or more nodes
may have the Internet
Connection Firewall
enabled, blocking
RPC communications
between the nodes.
Corrective Action
Configure the Internet
Connection Firewall to allow
communications that are
required by the MSCS and the
clustered applications
or services.
For more information, see
Microsoft Knowledge Base
article KB883398 at the
Microsoft Support website at
support.microsoft.com.