SQL Server 2012 Reporting Services: "Unable to connect to the remote server" I am trying to install SQL Server 2012 Reporting Services on Windows Server 2008, but all the web interface says after adding the feature and confirming all the default settings in Reporting Services Configuration Manager is 


  Error: Unable to connect to the remote server


In the logfile there is this message: 


  System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 127.0.0.1:80


This worked just few months ago on the same system.
I had a similar problem when installing SSRS for a SCOM installation.  It was configured with SSL but when I removed this I started getting the same error as above. Solution was to change the SecureConnectionLevel in rsreportserver.config to 0.

https://connect.microsoft.com/SQLServer/feedback/details/686214/removing-ssl-cert-in-config-manager-doesnt-properly-modify-rsreportserver-config