After spending several hours today scouring the web and experimenting with various network and firewall settings, I finally managed to establish a VPN connection to my remote server.
This fix might work for you. If it does, do leave a note to let me know. Otherwise, sorry I can’t help further.
First, the specs:
- MacBook Pro (early 2009)
- Mac OS X 10.7.4
- Parallels Desktop 7 for Mac, build 7.0.15094
- Windows 7 Professional, Service Pack 1
- Zonealarm Extreme Security 10.1.079.000
Second, the network settings on Parallels 7:
You might wonder why I have two network devices. The Network 2 is disconnected as shown below. I defined it because I saw somewhere that someone managed to fix his VPN issue by doing this but without giving any further details. I did the same but it didn’t work, it always disconnects my Windows network connection.
Then my Zonealarm settings:
The “Allow VPN Protocols” must be checked.
On Zonealarm’s main screen, clicked on View Zones and added the IP address of my remote server.
I hope the above helps you.