suppose you work for a company and become more and more busy with trips and other duties. so you may have to work remotely and decides to use SSH. After you downloaded and installed the SH program and attempts to connect to one of the routers in your office, and the screen showed a message "Putty fatal error, network error: connect reset by peer".

What most likely caused you not able to connect?

		you need to open port 22 on your companies firewall.
		putty cannot make SH connections
		you need to open port 25 on the firewall
		you need to turn off the stateful inspections on the firewall.