I googled my problem and I've read some questions in Ask Ubuntu, but I didn't solve my problem.
I connect to a PPTP VPN server and it works well, but when I'm connected to that VPN I don't have Internet access but private network access.
If I check "Use this connection only for resources on its network", I have Internet access, but this way I haven't access to my company's private network.
What's the problem? Help, please.