I have a Windows SBS 2011 server configured with Remote Web Workplace which works fine. The Sonicwall is also set up with the Global VPN Client and that works fine too.
The problem is that when I setup NetExtender on port 4433 to support our remote Mac users, it broke the Remote Web Workplace connection though remote Windows & Mac users were able to connect via NetExtender. With the NetExtender enabled, the Remote Web Workplace says that the certificate is invalid (it is apparently seeing the current self signed certificate on the Sonicwall) and fails to connect to the Windows server. I had to completed remove the NetExtender from the Sonicwall to get RWW working again.
Port 443 is configured to port forward to our Windows SBS Server which also hosts Exchange & OWA.
Any help would be greatly appreciated.