My Lenovo IdeaPad laptop won't stay connected to the Wi-Fi?

All other electronics are connecting just fine (iPhone, other laptops, etc). The Lenovo will probably hold internet connection for maybe five minutes then disconnects and won't connect back. I've tried restarting it and switching to other Wi-Fi networks and nothing seems to be helping. It's a brand new laptop. Could I have selected a setting that could make it keep doing this? Any advice on how to fix it?

Added (1). Even if I move right next to the router, it still won't connect. I've literally wondered all through my house to find a spot where it works and nothing.

Added (2). My laptop shows all available networks, BUT once I click on the one I want, it'll say it's loading but then fail to connect.

Move close to the wireless router and check the signal strength then move away until it shows low and this is the max distance you can be and connect but with a low signal it will disconnect from wireless at random times. Install a wireless signal booster or a better new router. Contact Lenovo support for the new laptop and have them check the wireless card in the laptop.

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