【NSF】Unable access SSL VPN login page (“Path selection failed, possibly because network connection error occurs”)

Issue Description

Fails to connect to the SSL VPN server (NSF) which shows the error message "Path selection failed, possibly because network connection error occurs".

Error/Warning Logs

Handling Process

1. Ensure the WAN interface is up and able be access by external network. (Could verify via ping.)
2. Ensure the when external source IP connect to the NSF IP port 4430 is not blocked.
   
3. Ensure that the static default route is configured.
   

Root Cause

Lack of the static default route configuration.

Solution

Configure static default route.