[Errno 104] Connection reset by peer

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Hello,

I have a bunch of nodes that ask and provide services to each other. Some of them crash after some minutes of execution, and the error is: Service call failed: [Errno 104] Connection reset by peer. I am including part of the code where a service is called.

def call_serve(self, server, myid, request, anyone_index):
    other_service = '/robot' + str(server) + '/serve'
    self.call = self.call + 1

    print 'I am %d calling: %s' % (self.about_me_wm.ID, other_service)

    self.write_log_file('write some values to file')

    -- some calculations

    rospy.wait_for_service(other_service, timeout=60)
    try:
        serve = rospy.ServiceProxy(other_service, Service_One)
        resp1 = serve(myid, request)
        print resp1.outgoing

        -- do some calculation with response

        return resp1.outgoing
    except rospy.ServiceException, e:
        print "Service call failed: %s"%e
        self.write_log_file(self.stdout_log, '[call_serve ' + str(self.call) + '] ' + 'Service call failed: %s'%e)

Normally, there should be a response to each service within 30 secs. I'm not sure if the timeout for rospy.wait_for_service might be the culprit here. Any suggestions?