Is there anyway to get an error log for a failed VPN connection attempt? All I get is this notification and I have no idea where to go from there:
What kind of VPN are you trying to establish?
Is it PPTP (Microsoft proprietary) or Cisco-compatible ?
The easiest way would be for you to run pptp (for PPTP) or vpnc (for Cisco) from a console and see the possible errors interactively.
I think that vpnc is quite straight forward, you just need to type in the necessary info (gateway ip, group name/pass, user name/pass).
I haven't actually used a PPTP VPN, but some info about setting it up can be found in the following link:
Log is written to