We have a new Zyxel P660 router and are experiencing problems trying to connect via our Sonicwall GVPN client. We have had limited success by disabling NST traversal on the Peer information page. This was not necessary before and i was wondering if we can change any settings on the Zyxel to allow some other users to gain access.
We have port forwarding enabled for port 500 and 443 but it still does not work.
Any ideas would be appreciated.