HPE Expert
Re: System error: [10054] Connection reset by peer: Error received when backing up VM in VMware

"Connection reset by Peer" usually indicate a network disconnect, or it may be the result of a pevious error.  if it is an error seemingly associated with any other type of event, you may want to review the attached document

 

I would pay special attention to item # 10, to increase the TcpMaxDataRetransmissions registry parameter

 

This article was written back in the day of Windows NT/4, but, it is just as valid today, the one difference being, you may not have to reboot the server to make this change effective