Making a bit of progress. The production PC now will show the iMac on the list of NDI Inputs, but the input named ProPresenter is black and when selected, he receives the error: "Could not create ndi receiver."

Ideas?

- Tom

Thanks, James. I'm thinking the upgrade might do the trick too.

Tom,
The spec for NDI suggests (if I recall it correctly) around 100 Mbps for each video channel. When I have tried with 720 50p for motion video it uses at least 60 Mbps, with peaks clearly above that.

So, when it comes to WiFi you need a really good WiFi connection. My findings so far is that it MIGHT work, but is typically not reliable. And definitevely not if more than one video signal is sent over WiFi. The problems I have found is that the NDI connection drops, and/or sometimes it is not even possible to see/connect to other sources on the NDI network over WiFi.

It might very be that the problem your friend has is WiFi related. Tell hen (Swedish for him/her, perhaps use "hir" or "hem" in English) to use a cabled connection instead. And, please note that if a USB to Ethernet adaptar is used most ones are 100 Mbps. But there are USB3 to Ethernet adapters that do 1 Gbit.

EDIT: could of course be that some WiFi settings in my router is not optimal for NDI. Also, it seems that if I have an NDI connection between a source and vMix, I need to update (ie Change the NDI source to the same) if I switch from WiFi to Ethernet, or the other way around.