Do you connect to the internet directly (using network-manager) or do you use a router?
I think the problem is, that Ubuntu tries to route all traffic through the vpn conncetion which actually fails.
I am not sure how you have to set up the internet connection to avoid this.
Maye all you need to do is to set up a dns server for the internet connection, but i am not sure!
I will try it by myself ...
Do you connect to the internet directly (using network-manager) or do you use a router?
I think the problem is, that Ubuntu tries to route all traffic through the vpn conncetion which actually fails.
I am not sure how you have to set up the internet connection to avoid this.
Maye all you need to do is to set up a dns server for the internet connection, but i am not sure!
I will try it by myself ...