Arduino Yún reliability


I am having some issues with Arduino Yún board and I am wondering how reliable is this product.

I have bought 2 pieces and without doing anything special then trying the delivered examples, I have noticed the following.

  • The first piece seems to have problem with the bridge connection and I can't do anything else as sending it back to the supplier. No way to reset it or to access it via network.

  • The second one has got USB connectivity issue. The serial interface is not recognized any more. The network interface still works.

Any advice or feedback to me?

Many thanks in advance.