UDP receiver does not receive messages

[natasftw]

Did the Simple UDP project work before the changes you've made?  That'll make it easier to troubleshoot what's going on with it.  If you can use the example without modifications, try changing the ports.  If that still works, check the logic.

If anything doesn't work at any step, you know what to look at.  (if the first port works but the second doesn't, you're looking at a firewall issue related to the specific port for example)

[Rus_K]

Firewall is desabled. 

Private network

MCU --> microcontroler

[altenbach]

This definitely should work just fine. (Many years ago I wrote a program to receive syslog messages)

Is this the only active network interface? Maybe you should try to wire the net address after all to see if you get an error if you specify the 192.168.100.1?

[Rus_K]

On local PC ports work just fine. I can read data

[Rus_K]

It end up to be firewall issue.

I found out that our IT guys would reset firewall settings if firewall was turn off complitly.

It would be nice if labvew error message would tell you this.

Thanks everyone for help 

[RavensFan]

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@Rus_K wrote:

It end up to be firewall issue.

I found out that our IT guys would reset firewall settings if firewall was turn off complitly.

It would be nice if labvew error message would tell you this.

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It did.  It told you it wasn't able to connect.  I don't know how LabVIEW could expect to know which of the 100's to 1000's of reasons it was not able to connect, in this case your IT people screwing around with firewall settings.