Tag Archives: Web Application Proxy

Resolving "Unable to retrieve proxy configuration data from the Federation Service" WAP fail (Event ID 422)

Recently I encountered a Web Application Proxy (WAP) server that was stuck in a failed state after changes to the ADFS backend service. In the Remote Access crimson log on the WAP server, an event 422 error appeared once every minute, showing that the WAP server could not retrieve proxy configuration from the ADFS backend… Read More »