Test-NetConnection is a native PowerShell cmdlet used for advanced network diagnostics. Unlike the traditional ping command, which only tests basic reachability via ICMP, Test-NetConnection (often abbreviated as tnc ) combines the functionality of ping, traceroute, and a TCP port scanner into one tool. How to "Download" Test-NetConnection
You do not typically "download" Test-NetConnection as a standalone file; it is a built-in feature of the module included with Windows PowerShell 4.0 and later. Test-NetConnection (NetTCPIP) | Microsoft Learn powershell download test-netconnection