Hi there, I bought the A7 a couple years ago and don't think I've ever actually used it. I just had Xfinity come by to hook up my modem, but when I try to sign into the WiFi the password is wrong. Does anyone know the steps I need to go through to recover or reset my WiFi password?

I can't tell if this is the page I need to follow instructions for, but I'm not sure if I can even do that because it says I have to plug an Ethernet cable from the router into my client (laptop?), which doesn't have an Ethernet port. 

Any ideas/guidance/direction would be much appreciated. 

Adam