Socket problems at starting the BACnet sharp

[SoundHarvester]

Good morning fellas,

or whatever timezone u currently are.

I have downloaded your wonderfull bacsharp project and opened it with Visual
Studio 2010. It starts and compiles without any problems but when I start the
"Send Who is" it finishes at the line 129 where the UdpRecClient should join
the Multicastgroup of address 224.0.0.1. The Error description says the
following:

"System.Net.Sockets.SocketException: A socket operation was attempted to an
unreachable host

at System.Net.Sockets.Socket.setMulticastOption(SocketOptionName optionName,
MulticastOption MR)"

But the curious thing that it works from time to time.

Does it have something to do with my network settings of router and so on?

I have setted up a device with Bacnet tools, which I try to find.

I apreciate any hints, thanks a lot.

Greetings Sebastian

[SoundHarvester]

Hello,

sorry for wasting your time. I think I solved the problem.

I have had setted the wrong IP for the Mulitcastgroup.

There was 224.0.0.1 instead of 224.0.0.2. The last one works perfect and I am
finding my device.

I dunno how this was setted.

Greetings Sebastian