If it is a Pi3B (or most other versions/flavours) of Pi, running a pre-loaded OS would it not be Rasbian, of which the latest version number I do not know (but I am still on the previous version)?
If the Pi finds your network then the most likely thing is that you are on WPA not WEP. I have gone round in circles like this sometimes with Puppy where you have to register a profile before connecting with it. Choose the wrong protocol, you can't connect (obviously) but just try to delete the wrong profile! I didn't have this problem with the Pi though, I hit the right one first time. Normal that you get no failure information, just a failed connection.
Incidentally with the Pi, if you are using a non-english keyboard you have to connect with a wired line to set the thing up before configuring the wi-fi. NOOBS users beware!
Also watch out Pi3 needs cooling if you are using it fairly long periods. Mine used to cut out through overheating (some sort of heat security device), you can actually see this on the screen. Now I have a modified case with a little PC processor fan (mine runs off a second USB power supply, which is not enough volts but works fine) which allows the Pi to run Youtube all day if I want (the monitor is the telly).
