Hi @AU-ID-COE RPA​ ,

Provide only one IP address to configure the Control Room on a single node. Provide multiple (three or more) IP addresses to configure the Control Room for high availability cluster.

Procedure

1. Select the Enable Cluster Setup check box.

• To install the Control Room on a single node and not a cluster, clear the Enable Cluster Setup check box.
  • The check box is enabled by default if the machine on which the setup is being run has local IP addresses configured.
  • The check box is not available for selection if your MachinePolicy is set to AllSigned or UnRestricted and the PowerShell files are not signed.

1. If the nodes in your network use IPv6 address, select the IPv6 check box.
2. Enter the IP addresses of the nodes in the cluster.
3. Use a comma (,) to specify more than one IP address.
4. For example, to specify three IP addresses in the cluster, enter: 192.0.2.1,192.0.2.2,192.0.2.3
5. Important: The first IP address in the list is used as the master node. Ensure that you enter the IP addresses in the same order on all node configurations in subsequent installations. An incorrect order causes the application to configure the IP addresses as separate clusters, which will result in data loss when the issue is fixed after installation.
6. You can install multiple nodes at the same time after the master node is initially installed.
   1. After installation, you can add a new IP address to the cluster at the end of the list. However, you cannot change the IP address version (for example from IPv4 to IPv6).
   2. After you enter the cluster IP addresses correctly, select a valid address IP at the message prompt to provide network access to the machine.
7. Select a private IP address from the Local IP Address drop-down list.
8. If multiple local IP addresses are configured on the machine, select the IP address on which the Control Room is installed because it will be used by other nodes to access the Control Room.
9. Click Next to complete the Control Room installation process.
10. Optionally see the Setup installation summary page.

Checkout below link for more info,

https://docs.automationanywhere.com/bundle/enterprise-v2019/page/enterprise-cloud/topics/deployment-planning/on-prem-install/cloud-custom-install-configure-ip.html

https://docs.automationanywhere.com/bundle/enterprise-v2019/page/enterprise-cloud/topics/deployment-planning/on-prem-install/cloud-ha-dr-cluster-overview.html