Roon Server connection issues with Firewall/Nginx Proxy Manager (ref#5MO365)

Hi! What’s not quite right with Roon?

· None of the above quite fits

None of the above quite fits

· None of these quite match

Tell us what's going on

· Roon Server behind Firewall/Nginx Proxy Manager

Tell us about your home network

· ISP Router is connected to DMZ Network
Nginx Proxy Manager (NPM) is connected to DMZ
Firewall connects DMZ and LAN
Roon Server is connected to LAN
ISP Router has DynDNS enabled and forwards any request to NPM
Various subdomains are forwarded to NPM and from NPM to the Service connected to LAN

Hello @Frank_Schmidt,

Thank you for reaching out and for the detailed description of your network setup.

After reviewing your configuration, we can see that you have a fairly advanced infrastructure — with a DMZ, Nginx Proxy Manager, and a firewall separating your Roon Server from the rest of the network. While we appreciate the thoroughness of your setup, this type of custom network architecture falls outside the scope of what Roon Support is able to assist with.

Roon is designed to work on a standard local network where the Server and its clients (Remotes and endpoints) can communicate freely via multicast/broadcast. Configurations involving DMZ segments, reverse proxies, and custom firewall rules between network zones can interfere with Roon’s discovery protocols in ways that are difficult for us to diagnose or support remotely.

We recommend consulting with a network specialist who can review your firewall and routing rules directly. You may also find helpful discussion in the Tinkering , where other technically advanced users have shared their experiences with similar setups.

We hope you get it sorted out!

I finally found the solution:

  • the Router-NAT was set up to forward TCP port 55000 to Nginx Proxy Manager
  • in Nginx Proxy Manager, the port forwarding (or correctly named “Streams Host” was enabled for UDP instead of TCP.

After changing the Ngix Proxy Manager’s configuration to TCP it worked.