Finding each other on the network

Before any of the roles can work, the devices have to find each other. MusicBee's server binds to a network address and a TCP port, then announces itself to the LAN over SSDP so devices can discover it. The default port is 9779; if that port is already taken, the plugin automatically picks a nearby free one and devices still discover it (you only need to set a fixed port if your setup requires one).

Two settings matter on machines with unusual networking:

• IP address / network interface. "Automatic" serves on all interfaces, which is right for most PCs. On a machine with several networks at once — Wi-Fi and Ethernet and a VPN — pick the interface your audio devices are actually on, so MusicBee advertises an address they can reach.
• Port. Change it only if another program already uses the default, or your firewall insists on a specific number.

The number-one reason a device "can't see MusicBee" is the firewall, not UPnP. Windows Firewall must allow MusicBee's port on both the private and public network profiles, and you usually have to restart MusicBee after changing firewall rules. Check that before changing anything inside the plugin.

Settings

Control	What it does
IP address	Which network interface the server binds to; "Automatic" uses all interfaces. Takes effect after a MusicBee restart.
port	The TCP port the HTTP server listens on (default 9779). If the port is taken, the plugin auto-selects a free one. Takes effect after a restart.