How do I figure out why port-forwarding is not working?

Any progress on this? 

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awasen wrote:

I have an Orbi setup and a RaspberryPi running Node-red in my network.

The Node-red server is listening on port 1880 using HTTPS.

Accessing the Node-red app works fine in the LAN, e.g. https://192.168.20.50:1880/ 

 

I've added a port forward for TCP/UDP from external 443 to internal 1880.

 

My Remote Admin for Orbi is set to port 4443 and UPnP is disabled.

 

I can still not access the Node-Red server from outside using my Public IP, nor through my no-ip DNS.

https://my.public.ip/ gives a network error.

Portscanning says port 443 is closed in my system.

 

Running latest firmware and have restarted Orbi multiple times...

 

Tried the Orbi logs but they don't really tell me much... :o

How can I track down why this is not working...?

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