SQL server Reporting Services configuration manager does not open

This can happen due a corrupted wmi repository. If that is the case in your installation.

Find the file sqlmgmproviderxpsp2up.mof in your SQL installation directory on your server.

 In my case it was located in

C:\Program Files (x86)\Microsoft SQL Server\110\Shared

Then open command prompt as admin and navigate to the directory.

Then execute

mofcomp.exe sqlmgmproviderxpsp2up.mof

This will repair your repository  and you should be able to open the console.