Wieso wird das Bild in der PictureBox nicht angezeigt?

Private Sub Button1_Click(sender As Object, e As EventArgs) Handles btn_Ping.Click
        Try
            Dim success = My.Computer.Network.Ping(txtb_Device.Text)
            If success = True Then
                pb_Ping.Image = Image.FromFile(path & "\PictureSrc\Success.ico")  
                Dim strIPAdress = System.Net.Dns.GetHostByName(txtb_Device.Text).AddressList(0).ToString()
                lbl_IP.Text = strIPAdress
            End If
        Catch
            Try
               pb_Ping.Image = Image.FromFile(path & "\PictureSrc\Failed.ico")  
            Catch Ex as Exception
               Msgbox Ex.ToString
            End Try
            lbl_IP.Text = "Failed"  
        End Try
    End Sub