I've updated to Parallels Build 1966 and I was intrigued by the Connection Sharing feature because I switch between wired, wireless, bluetooth and USB modem connections. I have a PPTP VPN client which requires port forwarding of TCP Port 1723 and IP Protocol forwarding of Protocol 47 (General Routing Encapsulation). This PPTP Client works fine with Bridged and Host-only networking and OS X Internet Connection sharing, it does not work with Parallels Connection Sharing. Clarification: This PPTP client operates in a Windows XP guest VM. There is a Mac PPTP client but it is not reliable over a wireless connection (does not reconnect). Does anyone have any fix suggestions?