Remove Web Application Proxy Server From Cluster ((full)) Page
Run the following PowerShell command on the server you want to remove:
Use the following command to filter out the decommissioned server (replace 'ServerToRemove' with the FQDN of the node you are removing): powershell remove web application proxy server from cluster
Once applications are cleared, uninstall the WAP role and its dependencies. Run the following PowerShell command on the server
AD FS removes the OAuth2 client configuration for that proxy. The WAP server will no longer receive valid proxy trust certificates. Any future connection attempts from that server will be rejected with HTTP 401 or 503 errors. remove web application proxy server from cluster