I wrote some code that sends data from an android app written with processing to another program running on windows (on the same wifi network).  Before today, it worked perfectly.  Now, seemingly randomly, it stopped.  Even though the IP address of the host is hard-coded into the android app, I checked and it is still the same.  The only difference is that the host application (windows PC) now includes methods for serial communication over USB with an Arduino.  Running the android app in debug mode, i get the following error when I try to send an OscMessage -