Hi all, I've got a twisted application that uses a LineOnlyReceiver as its protocol. All connections between clients and my server are open ended so I have to be sure they are working correctly. However, when I disrupt the network connection between a client and the server, the server happily keeps writing to the connection while the client closes its part and re-connects again. I am using sendLine to send the data but have also tried transport.write and transport.writeSomeData but with these no data is being sent at all! So, anyone knows what I have to do to get signalled when writing to a connection fails? Any help would be very welcome. Thanks, chris