Remove Web Application Proxy Server From Cluster Exclusive Guide
Even after uninstalling the role, the AD FS proxy trust entry may remain. Removing it is optional but recommended for a clean environment.
Before you remove that node, write a runbook. Quiesce the traffic. Clean the control plane. Verify the certificates. And always, always test the authentication flow afterward. Your users—and your on-call pager—will thank you. remove web application proxy server from cluster
Wait until established connections drop to zero (or near zero for long-lived persistent sessions — set a max wait of 30 minutes). Even after uninstalling the role, the AD FS
Log in to the server designated for removal and verify its hostname and current operational status. Even after uninstalling the role