HP Pavilion 15 N-222sa won't connect to wireless internet unless under 5 meters away

I purchased this HP laptop just over a week ago and since then have had issues with its connectivity. When i am close to the wireless router the internet connects fine and i have access to fast internet with no issues. If i am more than 5m from the router the internet is extremely slow or will not connect at all. I would expect the laptop to at least be able to access the internet from every room in the house. I have tried resetting the internet, restarting the laptop and nothing changes... can this be fixed, if so how do i fix it 

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