SFTP kex_exchange_identification

I am trying to connect to an SFTP server from the Linux server.
I am getting intermittent connection issues.
$sftp user_name@XX.XX.XX.XX

I get the following error.
kex_exchange_identification: read: Connection reset by peer
Connection closed

When I can connect, I am able to get and put files on the SFTP server.

Any assistance is greatly appreciated.