Unable to install Web Application Proxy
I got an issue while installing Web Application Proxy which does not seems documented anywhere so I am sharing. It is a small issue which does not let the trust complete.
Got the following Error while completing the web Application Proxy setup:
Unable to retrieve proxy configuration data from the Federation Server.
In the event viewer, we got the following error event 25 times
Unable to retrieve proxy configuration data from the Federation Service.
Trust Certificate Thumbprint:
System.Net.WebException: The remote server returned an error: (401) Unauthorized.
-On the ADFS Server, I got this error event
The federation server proxy was not able to authenticate to the Federation Service.
Ensure that the proxy is trusted by the Federation Service. To do this, log on to the proxy computer with the host name that is identified in the certificate subject name and re-establish trust between the proxy and the Federation Service using the Install-WebApplicationProxy cmdlet.
-Now there is an ultimate blog which will help in fixing the issue because multiple things can cause this issue.
-I used the script mentioned in the blog and run on my ADFS server.
-I got the warning with my IIS binding.
-I removed the IP and changed to all unassigned IP.
=Rerun the Web Application Proxy setup and it completed successfully.
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