Can not use SSL VPN Network Extender

[awe12345w]

 Hello everybody,

 I have an issue with SSL Network Extender with CP R80.10. The gateway is behind SRX4100 so I have to NAT the IP of Checkpoint to IP public and I only NAT port 443. User from Internet can access the web portal but I can not use the Native Application and World Clock website. I think that Checkpoint use another port than 443 for the Service. Can anyone help me!!