To remove a Web Application Proxy (WAP) server from a cluster, you must first update the cluster's configuration list via PowerShell and then decommission the specific server by uninstalling its roles. 1. Remove the Server from the Cluster List
Only proceed when the counters hit zero. remove web application proxy server from cluster
Once removal is confirmed safe, decommission the physical/virtual server. To remove a Web Application Proxy (WAP) server
Removing a web application proxy server from a cluster is a high-risk, low-frequency operation that demands careful planning, traffic draining, configuration synchronization, and thorough validation. Following the structured methodology outlined in this paper — from assessment through decommissioning — ensures minimal user impact and maintains the security and availability of published web applications. Verify cluster health : Check the cluster's health
Test-AdfsWebApplicationProxyConnection -ProxyUrl "https://sts.contoso.com" -RelyingPartyIdentifier "urn:federation:MicrosoftOnline"
# List all proxy trusts Get-AdfsWebApplicationProxyRelyingPartyTrust