i bought this new Strong receiver 4900, to be able to watch Jazeera Hd which im subscribed to legally, however the guy gave me a somethin that i plugged in my receiver and connected to the internet and every channel is opened now. now i have some questions about this.

1- whats that system called? dongle? sharing? i duno
2- i know its free , but the channels keep cutting every minute i mean they are decrypted but it is very annoying , so how to fix it, or should i subscribe to a server or what?
3- when im connected to the internet. does this mean that im sharing my jazeera card too?
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