A technician is troubleshooting a lack of Internet connectivity affecting their entire office. The technician suspects the issue is with their Internet Service Provider failing to provide service. Whi

The `tracert` (traceroute) command maps the network path a packet takes to reach a specified destination, displaying each hop along the route. If the `tracert` output shows timeouts or stops progressing beyond the local network gateway and before reaching a public destination, it strongly indicates that the issue lies with the Internet Service Provider's (ISP) network or upstream connectivity, effectively testing the theory.

`ipconfig` displays local IP configuration information, which is useful for checking the client's network settings but does not test external connectivity to the ISP's network.

`netstat` displays active network connections and network statistics on the local machine, primarily used for analyzing local network activity rather than diagnosing external ISP issues.

`nslookup` is used to query DNS servers for domain name resolution, which could identify DNS issues, but `tracert` directly tests the path to a public IP address, providing more comprehensive insight into ISP connectivity.