Maxwell Render | Official public forum

Here is a new error that I have never seen before. Any idea as to what caused this?

Thanks

[14/January/2015 04:18:18] Render process finished successfully!
[14/January/2015 04:18:18] Connecting to render process: Binding to port: 45463
[14/January/2015 04:18:20] Message from manager: send_mxi
[14/January/2015 04:18:20]
[14/January/2015 04:18:20] Start MXI transfer process
[14/January/2015 04:18:42] ERROR: Error in MXI sending socket. Code: Unable to write
[14/January/2015 04:18:44] Warning: Manager disconnected!
[14/January/2015 04:18:45] Receiving broadcast response from manager in port: 61875 at address 192.168.1.239