NFS is playing up causing the server that is writing to the share to time out.
This also happens to the configuration program.

After a few minutes it returns to normal.
Here is the console output:
Allegro NFS v5.1 running.
2015-02-13 14:20:09| Log file: c:\AllegroNFS\nfsdebug-0.txt
2015-02-13 14:20:09| Allegro NFS Server version 5.1 (NFSv2/NFSv3) initializing
2015-02-13 14:20:09| commit id: f4fcd44
2015-02-13 14:20:09| Built with Allegro CL 8.2 [Windows](Jul 27, 2011 12:42)
2015-02-13 14:20:09| PMAP: Using UDP port 111
2015-02-13 14:20:09| PMAP: Using TCP port 111
2015-02-13 14:20:09| MNT: Using UDP port 52709
2015-02-13 14:20:09| MNT: Using TCP port 52709
2015-02-13 14:20:09| NSM: Using UDP port 52710
2015-02-13 14:20:09| NSM: Using TCP port 52710
2015-02-13 14:20:09| NLM: Using UDP port 52711
2015-02-13 14:20:09| NLM: Using TCP port 52711
2015-02-13 14:20:09| Allegro NFS Server version 5.1 (NFSv2/NFSv3) started.
2015-02-13 14:21:53| read-record got error Incomplete read during read-int-from-stream
Returning nil
2015-02-13 14:48:44| Reloading configuration file...
2015-02-13 14:48:46| Reloading configuration file...
2015-02-13 14:54:26| Reloading configuration file...
2015-02-13 14:54:27| Reloading configuration file...
2015-02-13 15:05:58| read-record got error Incomplete read during read-int-from-stream
Returning nil
NFS is playing up causing the server that is writing to the share to time out.
This also happens to the configuration program.

After a few minutes it returns to normal.
Here is the console output:
Allegro NFS v5.1 running.
2015-02-13 14:20:09| Log file: c:\AllegroNFS\nfsdebug-0.txt
2015-02-13 14:20:09| Allegro NFS Server version 5.1 (NFSv2/NFSv3) initializing
2015-02-13 14:20:09| commit id: f4fcd44
2015-02-13 14:20:09| Built with Allegro CL 8.2 [Windows](Jul 27, 2011 12:42)
2015-02-13 14:20:09| PMAP: Using UDP port 111
2015-02-13 14:20:09| PMAP: Using TCP port 111
2015-02-13 14:20:09| MNT: Using UDP port 52709
2015-02-13 14:20:09| MNT: Using TCP port 52709
2015-02-13 14:20:09| NSM: Using UDP port 52710
2015-02-13 14:20:09| NSM: Using TCP port 52710
2015-02-13 14:20:09| NLM: Using UDP port 52711
2015-02-13 14:20:09| NLM: Using TCP port 52711
2015-02-13 14:20:09| Allegro NFS Server version 5.1 (NFSv2/NFSv3) started.
2015-02-13 14:21:53| read-record got error Incomplete read during read-int-from-stream
Returning nil
2015-02-13 14:48:44| Reloading configuration file...
2015-02-13 14:48:46| Reloading configuration file...
2015-02-13 14:54:26| Reloading configuration file...
2015-02-13 14:54:27| Reloading configuration file...
2015-02-13 15:05:58| read-record got error Incomplete read during read-int-from-stream
Returning nil