disappointed! N300 Router

First use no Internet access. General Reset not better. I decide to call the sav. Fast response, nice person but noticeably misshapen. 1 hour 30 minutes later and after a series of tests as fruitless as each other, the router is declared hs. I will receive an email for exchange. Latest news, the product is no longer in stock. The sav will contact me. I'm disappointed I thought that this brand was reliable. Last, I have bought the router promo and it is no longer in stock at the manufacturer, n was not a good deal!