XML-RPC c++ Error socket protocol

I have downloaded the example of XMLRPC in c++, and when a execute the example code the server runs. Then i load the .urp example program of a camera ,with the ip and the port change and when i press play and on the server side prints this error:

Something threw an error: Error reading a packet from the packet socket. Byte 0x50 is not in a packet or escape sequence. Sender is probably not using packet socket protocol

Any help?