UPD DATV Modularor vs OBS Studio

[EA3IGB]

Hello, has anyone managed to synchronize OBS Studio in transmission with the UPD input of SDRAngel's DATV Modulator?

I put everything on the same computer IP and port but OBS tells me that it cannot find the device, it is important as an alternative for DATV of the Adalm Pluto much more complicated.

Thanks

[srcejon]

It looks like you haven't told it to use UDP.

[EA3IGB]

I have put in OBS "UPD://127.0.0.1:5004" and now it tries to connect, it takes 2-4 seconds but it gives the error "FAILED to connect to the server",
the SDRAngel is running with the UPD option active, I have balanced Symbols /s and everything possible. I'll see what else fails, any idea will be well received.
thank you

[srcejon]

Make sure you have disabled your firewall.

But also, UDP is connectionless, so not sure how the software you are using would know it's failed to connect to the server.