Java EE (Java Enterprise Edition) General Discussion

Hello friends! I'm very confused by this problem...

I have two applications in Java, a client and a servlet. The client connects to servlet by:

         URLConnection con = getServletConnection();
                  OutputStream outstream = con.getOutputStream();
                  ObjectOutputStream oos = new ObjectOutputStream(outstream);
                  oos.writeObject(myObject);
                  oos.flush();
                  oos.close();

The servlet recibes the object with POST method, and works with him.

This application has worked fine over 2 years for all the people , but today.. misteriously not works for a few clients located in a similar geographic zone, and i don't know why...

In my tomcat log appears the next error every time this "conflictive" clients try to connect:

"java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:155)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:229)
...."

For all the other people, still works fine. It seems like a particullary zone clients not sending good connections to my tomcat.

Thanks a lot!