In the latest versions of Windows, the client and telnet service are not installed by default. They are available as installable functions. Unfortunately, turning on telnet often requires a restart computer. The connection test can be performed with the ping command, but does not perform any tracing or port testing. In most network problems we need to use ping command with tracert. Also telnet for check for open ports. PowerShell Test-NetConnection The Test-NetConnection command is the successor to Test-Connection but provides more information. Let's do a simple test to Google: PS C:\> Test-NetConnection 8.8.8.8 ComputerName : 8.8.8.8 RemoteAddress : 8.8.8.8 InterfaceAlias : Ethernet 2 SourceAddress : 192.168.1.10 PingSucceeded : True PingReplyDetails (RTT) : 9 ms The command returns a lot of information, usually this is enough to find a network problem (if any). It will display the interface, source I...