I can help you find your info but I’d highly recommend upgrading that device first. Its ancient and isn’t even fully dual band. Its switchable meaning you either have 2.4ghz or 5ghz. That literally only happened with that device and most device makers didn’t do it that way as its pointless. Its also an incredible slow device. 

It might work fine for slower speed stuff but if you’re going to be streaming with it, I’d highly recommend upgrading it. Its time to upgrade to something from this generation as that one is 13 years old. 

(it does have wpa2,. Its just your wifi password you need)