I use the Deco mesh in a router mode. Recently, I set up a QNAP NAS TS231P on my network. I set up a web server on my NAS and enabled WebDAV so I can access the files remotely.

The issue is when I use a direct wired connection from the NAS to the modem, then the Qfinder pro can't find the NAS on the same network as my wirless connection. 

Solution is to directly connect the NAS to the Deco unit. But once I do that then I can't port forward on my modem to the NAS, since the LAN IP for the NAS is no longer listed under connected devices.

So I deciced to port forward on the Deco directly and it still doesn't work, meaning I can't reach my server while using the public IP and the assigned port.

How can I port forward on the Deco so that I can still reach my web server. 

Thanks for your help.