Reference LibraryWiki TelnetWiki TelnetUsing Telnet to test open ports You will need to enable Telnet in CMDdism /online /enable-feature /featurename:telnetclientOr use this in powershellInstall-WindowsFeature -name Telnet-ClientThen use command telnetIf the window opens to a blank window it means the port is openWiki Common PortsWiki/Scroll Page Script