Web Application Proxy (WAP) servers are commonly deployed in pairs or larger clusters to provide reverse proxy functionality, pre-authentication, and published application access (e.g., Active Directory Federation Services (AD FS), Exchange, or internal web apps). Removing a node from such a cluster is a critical maintenance operation that, if performed incorrectly, can lead to authentication failures, session interruptions, or a complete outage of published applications.
Step 6: investigate root cause. With the node isolated, Priya pulled its diagnostic bundle. Disk I/O spikes and a kernel panic trace emerged—an intermittent driver bug in the network offload card. She filed a ticket and attached the bundle for the hardware team. remove web application proxy server from cluster