Hey all!

Few days ago I got Acer V5-531. On this laptop, I can easily connect to wireless networks, but my home one. I could do it on my old laptop with no problems. How is it possible to solve this? It's getting quite annoying, especially knowing that this is the only network I can't connect to. In case with this network, it prompts password and then says "Unable to connect".

What have I tried

Air Mode is off
Updating/rolling drivers back
Resetting the router once (owned by neighbor, thus, I cant perform all maintenance on it)
router lights are on
pw is correct
wireless switch is on

What else can be done?
Thanks all!