This error indicates that the TCP connection has been reset by the peer. Things to try: * Check that you are attempting to connect to the correct IP address or DNS name. * Check that you are attempting to connect to the correct port number. * Check that the service you are attempting to access (e.g. a web server, if you are attempting an HTTP boot) is online and responding to requests. * Check any firewall rules or access control lists. * Try [[:howto:pcap|capturing a packet trace]].