At my old place, everything worked fine. I could access Plex outside of my house.

I had the modem/router into my computer.

I moved to a new place and now have a modem/router into the Deco mesh network into the PC.

Everything in my home network can see the plex but I can't access it outside.

What can I do about this?

Thanks for your help.

I am not actually sure on the hardware version. Where do I find that?