VERY UNSATISFIED WITH THE WAY ASUS TREATS CUSTOMER

On the 28th December 2014 i bought a Asus laptop from incredible connection, the laptop was kept in its box until 15 January 2015. I then loaded programs onto the Laptop, it kept on disconnecting me from the internet. I sent the Laptop to the technical department on the 18th January 2015. I waited 3 weeks for feedback, they then informed me they replaced the Lan Board and the Lap top is fine. I received it back, only the next day to have the same problem all over again. I urgently needed it for month end and could not return it the same day. I took the laptop back, the technical department informed me it is the software, which i am responsible for the costs. This is utterly ridiculous, as it is a new laptop and i feel like the company should take responsibility. The inconvenience i had to go through is in explainable and absurd.