I know there are several threads on this topic but there appears to be two different issues going on that need resolving: 1) The Cisco VPN software (driver) can not load in the HOST (we know this is related to the driver load order) 2) The Cisco VPN software fails to work in the CLIENT This topic is mean to address item #2 ONLY. Setup: Host: Mac OS X 10.4.6 MacBook Pro 17 Cisco VPN 4.9 (using TCP port 10000) Guest: Windows XP SP2 Cisco VPN 4.8 (using TCP port 10000) Parallels: Beta5, Beta6, RC1, or RC2 How to reproduce this problem: 1) Launch Parallels (PWS) and start the guest OS 2) Connect the HOST OS to the target VPN (e.g., myvpn.mydomain.com) (SUCCESS) 3) Go back to PWS and attempt to start a VPN session to the same host (FAILURE) 4) Go back to the HOST and disconnect the VPN session 5) Return to the guest and repeat step 3 (SUCCESS) Results: 1) Guest connection connect fails at step 3 2) At step 5, the connection succeeds Additional examples/tests: EXAMPLE #1 1) Launch Parallels (PWS) and start the guest OS 2) In the Host OS, lookup the IP address of the VPN target host (e.g., nslookup myvpn.mydomain.com) (SUCCESS) 3) Without connecting any VPN, go back to the guest OS 4) Perform the same lookup (e.g., nslookup myvpn.mydomain.com) (SUCCESS) 5) Return to the host and connect the VPN 6) Return to the guest and repear the same lookup (e.g., nslookup myvpn.mydomain.com) (FAILURE) Once the host is connected to the remote network, the guest OS can not longer resolve any IP addresses in the public target domain. This seems to indicate that the routing table is not correct once the host is connected. EXAMPLE #2 1) Launch PWS and start the guest OS 2) Within the Guest OS, establish the VPN connection (SUCCESS) 3) Go back to the Host OS and connect the VPN from the host (SUCCESS) 4) Go back to the guest and disconnect the VPN connection 5) Now attempt to reconnect the guest (FAILURE) This is repeatable with the Parallels adapter installed or not, enabled or not, with Mac OS internet sharing enabled or not. What we need from Parallels: We are looking for Parallels to either a) acknowlege an issue or bug, b) explain why this behaviour occurs, or c) describe a specific workaround for this particular issue.