Seriously, R. Proffitt is right. Take the new laptop to a different location, maybe a friend's house. Check the reception (speedtest.net, maybe) near a router then further away.
As previously mentioned, most new laptops have dual-band wi-fi. This means they include standard 2.4GHz band as well as 5.0GHz band. Your laptop may be connecting to the router on one band but not the other. Usually, 5.0GHz provides significantly faster speed if reception is strong. 2.4GHz usually maintains reasonable reception at greater distances or through walls and floors.
Click on Start and type Control Panel. A window opens.
Click on Network and Sharing Center.
Look in the upper area of the window. It should tell you which network you're connected to as well as which wi-fi band (2.4 or 5.0).
You can try changing to the other wi-fi band, or try the troubleshooting option.
By the way, just had an unlikely thought. When you go to your room are you maybe getting interference/conflict from a next door neighbor's wi-fi which is on the same channel? This would be where you change the channel on your router to a different number to avoid the interference.
Finally, failing all this, it's possible that your new laptop has a defective wi-fi chip, in which case you should return it or have it repaired under warranty.
Anecdote: We have a Lenovo gaming laptop which is equipped with two discrete graphics cards. They're housed in slim cartridges that slide in, one on each side of the laptop. Inside the laptop is an antenna wire connected to an Intel 2.4GHz wi-fi chip. Guess what? The graphics card cartridges tend to block some of the wi-fi reception, so it's OK when near the router but really poor reception when moved just one room away. Solution: we added a dual-band wi-fi adapter that plugs into a USB port on the laptop, and it provides excellent reception on both bands. Of course, it sticks out from the side of the laptop a couple of inches but, hey, it works!