I don't see any NDI sources
InterDirector finds NDI sources automatically, by discovery on your local network. If nothing appears when you add an NDI input, the most common cause is the network, not InterDirector or the sender.
What to check
- The same network. Discovery finds senders (a camera, an encoder, another application) on the same local network as this Mac. A guest Wi-Fi network, a network with client isolation switched on, or being on a different VLAN from the sender, all stop discovery from working even though both devices can otherwise reach the internet. A sender on another network segment or over a VPN can still be found by its address: see below.
- The sender is sending. Check the source app or camera itself is running and its NDI output is turned on; it will not appear here if it is not.
- A firewall. Some routers and managed switches block the multicast traffic NDI discovery relies on. If you control the network, check whether it allows mDNS/Bonjour-style discovery between devices.
- Refresh. If a source has only just started sending, it can take a moment to appear.
If discovery still does not find it: search its address
Some networks cannot see a sender through discovery even when everything else is right: the sender is on a camera VLAN or another network segment, across a VPN, or on a venue network that blocks discovery. If this Mac can reach the machine sending, give InterDirector its IP address:
- Open Settings and choose NDI.
- Type the sending machine’s IP address in Extra addresses, for example
10.0.5.20. Separate several with commas. - Press Return. Every source that machine sends is now listed when you add an NDI input.
The list belongs to this Mac, not to the Show, because it describes the network the Mac is on. Something that is not an IP address is named in red and not used.
If NDI’s own configuration file on this Mac already lists addresses (set up for other NDI applications), the NDI tab shows them. They are used while Extra addresses is empty; once it has an address, InterDirector searches its own list instead.
See also
A source keeps reconnecting, if the source does appear but keeps dropping out.