I have inherited an ARServer installation, I have a problem !
I have found the Web Interface to:-
1- Only work as expected when the Administration Service is used from the same server as the Web Service.
2- If the service is run from a differing server from the Web Server I get a message on the webpage telling me of a version mismatch 6.7 and 6.7.0 (browsed from the webserver)
3- Within the same configuration as point 2 from the webserver I can browse the portal using http://localhost/(site name) without issue
4- In the same configuration again but from a client the page is returned with 500 error
5- From all servers I am able to use MMC add in to browse all Administration Services without issue
Apologies if this is answered previously. The only 'fix' I could find was to reinstall the Management Shell for AD, this did not resolve.