' --- ping the ip adress in the string s_ipaddr, and get ' the response time in the int32 n_response ' imports system.net.networkinformation Dim ping As New System.Net.NetworkInformation.Ping Dim reply As System.Net.NetworkInformation.PingReply reply = ping.Send(s_ipaddr) If reply.Status = IPStatus.Success Then ' --- handle reachable here MsgBox("ping time " & reply.RoundtripTime) Else ' --- handle non reachable here End If