SSH error: Read from socket failed: Connection reset by peer

[Sam Snitman <ssnitman at yahoo dot com>]

Sorry I don't have much experience with cygwin ssh.

cygwin SSH no longer appears to be working and we are no longer able to receive files from a business partner via sftp.  the last time we received a file was April 15.  When the business partner attempts an sftp command to our server from the command line of their server, they get the following error:

>sftp ftpuser@65.38.96.67 
Connecting to 65.38.96.67... 
Read from socket failed: Connection reset by peer 
Connection closed 
> 


The D:\cygwin\var\log\sshd.log is empty.  Any ideas how I can troubleshoot this?  I have tried to restart the cygwin sshd server but that has not helped.  Is there a way to turn on debugging for sshd?

We are using private key authentication with SSH.

I appreciate any assistance you could offer.

Thanks,
Sam

Attachment: cygcheck.out
Description: Text document

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