Как можно узнать текущую скорость соединения с интернетом - C#

    private void InitializeNetworkInterfaces()
    {
        PerformanceCounterCategory performanceCounterCategory = new PerformanceCounterCategory("Network Interface");
        InstanceDataCollectionCollection data = performanceCounterCategory.ReadCategory();
        interfaces = performanceCounterCategory.GetInstanceNames();
        int length = interfaces.Length;
        if (length > 0)
        {
            bandwidthTimer.Enabled = true;
            dataSentCounters = new PerformanceCounter[length];
            dataReceivedCounters = new PerformanceCounter[length];
        }
        for (int i = 0; i < length; i++)
        {
            dataReceivedCounters[i] = new PerformanceCounter("Network Interface", "Bytes Sent/sec", interfaces[i]);
            dataSentCounters[i] = new PerformanceCounter("Network Interface", "Bytes Sent/sec", interfaces[i]);
        }
    }
 
    private void bandwidthTimer_Tick(object sender, EventArgs e)
    {
        int length = interfaces.Length;
        float sendSum = 0;
        float receiveSum = 0;
        try
        {
            for (int i = 0; i < length; i++)
            {
                sendSum += dataSentCounters[i].NextValue();
                receiveSum += dataReceivedCounters[i].NextValue();
            }
        }
        catch (Exception) {
            bandwidthTimer.Stop();
        }
        decimal used =(decimal) (sendSum + receiveSum)*8/1000;
        bandwidthUsed.Text = (decimal.Round(used, 1)).ToString();
    }