Continued rsync failures

[Brent Epp]

Hello,

I've reported this in the past, but I cannot reliably use rsync. This is 
a *local* synchronization between two Windows directories.  It seems 
that after a number of executions (a few dozen, maybe?), it just stops 
working and reports errors:

    rsync: connection unexpectedly closed (185 bytes received so far) 
[generator]
    rsync error: error in rsync protocol data stream (code 12) at 
io.c(228) [generator=3.2.4dev]
    rsync: connection unexpectedly closed (0 bytes received so far) [sender]
    rsync error: error in rsync protocol data stream (code 12) at 
io.c(228) [sender=3.2.4dev]

I have upgraded to the latest version of cygwin as of this morning and 
the problem persists.  I have no software on the BLODA list and I have 
tried with all security software disabled.

The only thing I can do is wait for a period of time (never timed it, 
but 10-20 minutes or so), which is immensely frustrating, as I am 
heavily dependent on it for work.

How can get I this working once and for all?

Thanks
  - Brent