I have made an OpenVPN connection to an "inner network", my school's private network. I can use the remote desktop application after the connection, so it's surely work. The ArcGIS Server is in a virtual machine, in a Windows Server 2008 R2.
The Server's version is 10.1 (I did not have refreshed that yet), and the ArcGIS Desktop version is 10.2. The Desktop application is installed on my computer. I have added myself as administrator on the ArcGIS Server Manager.
How should I connect to the server? (add that GIS server to the ArcCatalog) I have wrote in the URL:
But it says it cannot connect to the server. What should I do now?