Hi,
Please check the code example here:

ConnectableObservable<Long> connectable = Observable.interval(200, TimeUnit.MILLISECONDS).publish();
Subscription s = connectable.connect();

connectable.subscribe(i -> System.out.println(i));

Thread.sleep(1000);
System.out.println("Closing connection");
s.unsubscribe();

Thread.sleep(1000);
System.out.println("Reconnecting");
s = connectable.connect();

The actual output is:

0
1
2
3
4
Closing connection
Reconnecting

Notice no more values appear after Reconnecting. Looks like calling unsubscribe on the ConnectableObservable's subscription also terminates subsequent subscriptions, too. I need to call connectable.subscribe(i -> System.out.println(i)) again in order to produce output while the text says that 'old observers will begin receiving values again' after calling connect() on the ConnectableObservable object. I'm using RxJava 1.0.14.