I also have same problem.
VPN connected but cannot access internet and cannot ping 192.168.66.1, 192.168.66.5, 8.8.8.8. WHY ??
Ethernet adapter Local Area Connection 8:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : TAP-Windows Adapter V9
Physical Address. . . . . . . . . : 00-FF-3A-6B-E6-2D
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::3d72:b2f3:c4b7:b70a%45(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.66.6(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.252
Lease Obtained. . . . . . . . . . : Wednesday, October 22, 2014 10:33:16 PM
Lease Expires . . . . . . . . . . : Thursday, October 22, 2015 10:33:16 PM
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 192.168.66.5
DHCPv6 IAID . . . . . . . . . . . : 805371706
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-79-83-5D-F0-DE-F1-65-B0-2C
DNS Servers . . . . . . . . . . . : 192.168.66.1
8.8.8.8
NetBIOS over Tcpip. . . . . . . . : Enabled