Remote Access Service Start Errors on Windows Server 2008 / FF TMG

If you try to enable VPN client access to provide VPN connections or to enable RRAS for DHCP relay agent etc.

And if RRAS service cannot start? You might have errors below in your event viewer

• 20103 : Unable to load C:\Windows\System32\iprtrmgr.dll.


• 7024 : The Routing and Remote Access service terminated with service-specific error A device attached to the system is not functioning.


• 20103 : Unable to load C:\Windows\System32\iprtrmgr.dll.


• 21119 : The Remote Access Service configuration for VPN could not be completed. As a result, the Remote Access Service may be stopped.

The steps below solved my problem.

Unbind IPv6 from you NICs

1. Backup & Delete HKEY_LOCAL_MACHINE\System\currentcontrolset\services\remoteaccess\routermanagers\IPV6


2. Backup & Delete HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters\DisabledComponents


3. Restart the server , start the RRAS.

Hope it helps.