Komenda
tnc <adres> -port <port>
or
Test-NetworkConnection <adres> -port <port>
Output
PS C:\Users\Chris> tnc ras.parallels.com -port 443 ComputerName : ras.parallels.com
RemoteAddress : 104.17.249.35
RemotePort : 443
InterfaceAlias : Ethernet 13
SourceAddress : 192.168.1.9
TcpTestSucceeded : True
PS C:\Users\Chris>