Thank you for contacting.
May i know what is the firmware on rutx09 , please upgrade to the latest .
Regarding you query may i know what is the WAN IP address on the router ?
What http port is router using ? Is it 80?
What http port your Panel using ?
Both router and Panel's ports should be different .
Router is using port 80.
Panel is using Port 8000 as internal (Http port).
Router's WAN IP is : 100.xx.xx.xx
Your Port forwarding will be as:
You can access panel through port forwarding like this :
100.xx.xx.xx:8000 (External Port what you set for Panel).
I hope it helps.