wodVPN - No Ip address for vpn adapter (General questions)

I can now ping and I can use UltraVNC but when I use Windows Remote Desktop, it connects but then I get a black screen and then the VPN quits working and I have to reconnect on both computers. I have a command button that runs that code that you replied with because sometimes that function quits working and I can just click my button to run that code again and it starts pinging each other again. Sometimes it doesn't work and I have to stop the VPN and start the connection all over on both ends. It seems that Remote Desktop is what causes this problem as UltraVNC seems to work.