Hi, I'm Ashik. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP
Do you have any computer there that is already connected to your WiFi network ?
If so, what computer is it ? Apple Mac or Windows PC ?
If Windows, what version of Windows are you running on it ? 7,8, 10 etc
If you tell me which model of computer is that, then I can send you instructions to retrieve the password ***** that computer (if it is connected to your WiFi network).
Or we can continue later. You can get back to me any time you want www.justanswer.com
Have a great day,