Internet Sharing from my MacBook Pro (10.6.6) to other WiFi devices works fine.
But the moment I turn on the VPN connection (PPTP) on the Mac (which I would also like to share), the other devices cannot access anything anymore (everything works fine on the Mac itself).
What do I do?
Best Answer
OS-X treats a VPN connection as a totally separate connection from the device (airport, ethernet) it is transported on. So when you turned on your VPN, your airport or ethernet connection was no longer active.
If you want to share the VPN connection, you have to set up sharing for it the same way you did for your primary, non-VPN connection. They behave totally separately, for sharing purposes.