The VisualSVN Server Manager console uses Windows Management Instrumentation (WMI) for remote administration. Connecting to WMI remotely requires that you configure the Windows Firewall to allow network connections to WMI on the remote computer. This article describes how to configure the Windows Firewall to enable VisualSVN Server Remote Administration in various environments.
Incorrect Windows Firewall settings are usually identified by receiving the "RPC Server Unavailable" error message when trying to remotely connect to the VisualSVN Server using the management console:
Windows Firewall configuration should be done locally on the server by the user with administrator rights. While Windows Firewall can be configured using the Control Panel, you may find it easier to use the netsh command lines. Appropriate command lines for the most widely used Windows versions are listed below.
Configuring Firewall in Windows Server 2008 and newer
On Windows Server 2008 or newer, run the following command in elevated command prompt:

If you would rather use the Firewall UI than the netsh commands above, use the following steps on the server:
- In the Control Panel, click Security and then click Windows Firewall.
- Click Change Settings, and then click the Exceptions tab.
- In the Exceptions window, select the check box for Windows Management Instrumentation (WMI) to enable WMI traffic through the firewall. To disable WMI traffic, clear the check box.
For further details, see the article Setting up a Remote WMI Connection at MSDN.
