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#1 Posted : Sunday, September 25, 2016 1:02:19 AM(UTC)

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Hi, I have two teams I7 with 8GB of ram, nvidia gtx 760, windows seven 64 bits and vmix 17. I'm trying Connection NDI ... on the screen capture windows can appear and show me the thumbnail, but when you start the capture goes black; I waited for it to load the image a good time and nothing, why can it be?

Greetings to the whole team and thanks in advance !!!
#2 Posted : Sunday, September 25, 2016 7:14:21 AM(UTC)

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The most common cause of black video on NDI sources, there are a couple of potential causes:

1. Firewall software.
This is quite common with anti virus and security software that has its own firewall.
If you have software like this installed on the computer you wish to capture, check its settings to allow vMix Desktop Capture.

2. Multiple subnets on the network
This is less common but means the computer in question may have multiple networks configured, either dual ethernet and wifi at the same time
or multiple IP addresses setup. Make sure only a single connection type is used and only a single IP address is configured on the source computer.

3. vMix Desktop Capture version might be out of date, download the latest from vmix.com/ndi and also make sure vMix is up to date.

Hope this helps.


thanks 1 user thanked admin for this useful post.
ilkerer on 4/4/2017(UTC)
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