How to reconnect properly

### This is what your best practice sample says:
```cs
public static void Reconnect_Using_Timer()
{
/*
* This sample shows how to reconnect when the connection was dropped.
* This approach uses a custom Task/Thread which will monitor the connection status.
* This is the recommended way but requires more custom code!
*/

var mqttFactory = new MqttFactory();

using (var mqttClient = mqttFactory.CreateMqttClient())
{
var mqttClientOptions = new MqttClientOptionsBuilder().WithTcpServer("broker.hivemq.com").Build();

_ = Task.Run(
async () =>
{
// User proper cancellation and no while(true).
while (true)
{
try
{
// This code will also do the very first connect! So no call to _ConnectAsync_ is required in the first place.
if (!await mqttClient.TryPingAsync())
{
await mqttClient.ConnectAsync(mqttClientOptions, CancellationToken.None);

// Subscribe to topics when session is clean etc.
Console.WriteLine("The MQTT client is connected.");
}
}
catch
{
// Handle the exception properly (logging etc.).
}
finally
{
// Check the connection state every 5 seconds and perform a reconnect if required.
await Task.Delay(TimeSpan.FromSeconds(5));
}
}
});

Console.WriteLine("Press to exit");
Console.ReadLine();
}
}
```

I figured the ConnectAsync() method will always fail with "you cannot connect while already connected".
So I need to wait for the Client to realize the connection has been dropped before I can reconnect.

There are two solutions to this.
1. Check for client.IsConnected - but that kind of defeats the purpose of the whole TryPing thing.
If I am not connected I don't need to ping because I know the ping will fail.
If I am connected and the ping fails I need to wait for the client to realize this too before I can make any reconnection attempts.

2. If the ping fails --> disconnect gracefully and start reconnecting immediately.

My preferred option would be this is handled by the library internally ;-)
So I'll start looking at the ManagedClient as well.

### Which project is your question related to?
- Client