To open the firewall GUI up completely, create a firewall rule to allow remote firewall administration – do not create a port forward or any other NAT configuration.
Example Firewall Rule Setup
- Firewall > Rules, WAN Tab
- Action: pass
- Interface: WAN
- Protocol: TCP
- Source: Any (or restrict by IP/subnet)
- Destination: WAN Address
- Destination port range: HTTPS (Or the custom port)
- Description: Allow remote management from anywhere (Dangerous!)