I have Zywall SecuExtender 4.0.4.0

FV1972

I can't get it to work for some reason.  I use it everyday - today it just won't connect...  won't do anything!

PeterUK

Tested here with a USG40 maybe change the port the SSL VPN uses in VPN SSL VPN > global setting tab
Add a firewall rule from WAN to Zywall for that port
in the SecuExtender use example.com:5555 

Zyxel_Emily

Hi @FV1972,

Here are some tips for you about SSL VPN configuration.

1. SSL VPN pool cannot conflict with any WAN/LAN/DMZ/WLAN even if they are not in use.

2. SSL VPN pool cannot be 192.168.200.0/24 if Network Extension Local IP is 192.168.200.1.

3. If you change the SSL VPN port from default 443 to other port, you need to allow this port in security policy rule "WAN_to_Device" and enter example.com:port on SecuExtender just like PeterUK suggested.