The difficulty in troubleshooting TCP/IP connectivity problems on a Windows network stems from the sheer number of connections and services on a particular system. Identifying the status of the connections and determining which services are running can help you narrow down the search, but doing so takes time. However, an underused Windows command-line utility, Netstat, can shorten the time it takes to hunt down rogue connections by quickly providing information about client services and TCP/IP communications.
Unfortunately, because Netstat is a command-line tool, admins often avoid it. So to make the Netstat tool a bit easier to use, I created the Netstat Gadget, which automates the Netstat command.