I write this issue to help.
I spent few hours to try to resolve my problem. Impossible to see NDI source through the network with others PC clients. Impossible to receive NDI source to.

I upgraded NDI TOOLS, nothing.

In fact, there was a conflict between vMix and NDI TOOLS.

I just full uninstalled NDI TOOLS and reinstalled it to resolve the problem.

If it cans help someone...