Problems with OSC and Pure Data

Hi guys! i am trying to connect Pure Data and Processing by OSC. Yesterday when i did the conection between the two programs it was succesfull. But today, i get this problem:
i am working with the port 11112, If i open pd first ,and then run the processing sketch i get this message of processing:

“ERROR @ UdpServer.start() IOException, couldnt create new DatagramSocket @ port 11112 Address already in use: Cannot bind”

If i open processing first and then pure data, processing listening the port 11112 without any problem,but the error in pure data that i get is:

" dumpOSC 11112
… couldn’t create",

if, for example i write dumpOSC 11111 (and processing stills in 11112), the dumpOSC object
is created normally.

I think is a UDP problem but i cant find the solution anywhere, Please, does anybody know what the problem is? THANKS!!

I’m not sure. I recall recently that @guy_22 had a post about Pure Data with OSC – might have some ideas?