I am trying to establish a VPN connection on 12.04. It had worked in 11.10 but not at all right now. I can connect with Windows 7. My roommate also recently upgraded and is having the same problem.
Here is an excerpt from my system log: http://paste.ubuntu.com/991558/
We would appreciate any help!
UPDATE: I have tried recreating the connection and allowing MPPE encryption. My roommate found that he is able to get a VPN connection at another location. Is it possible that this has something to do with the way Ubuntu is communicating with this specific (and, I forgot to mention, new Buffalo) router, while Windows has no issues at all?