I am working with a Windows Server 2022 Failover Cluster. The cluster is configured to participate in two networks:

1.A local network necessary for communication with Active Directory (AD) and DNS servers.
2.A DMZ network to which the cluster assigns IP addresses.
The cluster’s role is to monitor a specific service, in this case, the Nginx service.

Issue:
When I shut down one of the servers, the ownership changes, and the failover process works correctly. However, if I unplug the LAN cable for the DMZ network, the failover does not occur. I want to resolve this issue so that failover happens correctly when there is a problem with the DMZ network cable.

Additional Information:
I am not very experienced with this topic, so if more information is needed, please let me know.

I have read various articles and asked ChatGPT multiple questions, trying to do everything I can. However, there is one thing that concerns me. It seems there is supposed to be a “Policies” tab in the properties of the role, but I couldn’t find it. This might be related to the issue.

I have attached a screenshot. Sorry, the Windows language is set to Japanese.

Explanation from Articles:

Open the Failover Cluster Manager tool.
In the left pane, click Roles to display the list of roles in the cluster.
Right-click the target role (e.g., Nginx service) and select Properties.
Click the Policies tab.
Adjust the Monitor Settings to configure resource monitoring and failover behavior.enter image description here
Sorry if this turns out to be a different issue.