Here’s the command to test a network connection in Powershell.

C:> Test-NetConnection -ComputerName server -Port 443

Result:

ComputerName     : server
RemoteAddress    : 10.0.0.5
RemotePort       : 443
InterfaceAlias   : Ethernet 0
SourceAddress    : 10.1.1.34
TcpTestSucceeded : True