Issues Setting Up Remote Access - Help Requested

[peteresavage_gmail_com]

Dear Forum. I am having issues setting up Plex remote access (needed to make Plex work on Sonos). I have no double NAT issue (checked) so I think it is about the port forwarding settings that I have set up. I attach 3 screenshots; one of the port-forwarding screen in my router; one from my Plex settings; one from my Synology NAS settings (static IP address page).

The static IP address of Synology DS218play NAS is 192.168.86.2. One thing that I don’t understand, but may be relevant is that my NAS always uses 192.168.86.1 for the gateway, but my router shows 192.168.1.1.

This is my router: https://www.telekom.de/hilfe/downloads/bedienungsanleitung.pdf

I would be grateful for any advice that can be offered on the topic. Many thanks, Peter

[tom80H]

You might want to look into the actual router configuration and preferably establish the port reservation there (page 125 of your manual).
I suppose the issue might be along the setting of a „static“ IP address of the device only on the Synology. This could also explain the difference in IP bands you experience between the router and how you configured the Synology

[peteresavage_gmail_com]

Thanks for the response Tom. Could the issue also be DNS related? I use a SmartStream service on my router (https://www.streamvia.com/) and for this service to work I have manual DNS entries that are given to me by the provider. These DNS entries are on both my router and also my Google WiFi network.