Hello and thanks for your question. I look forward to assisting you today with the best answer possible.
What is the operating system of your computer?
for eg: windows/Mac
Would you like me to remote in your computer and help you in setting up your printer wirelessly?
Remote assistance was optional but my motive behind sending you this offer is because the problem which you're facing requires a lot of information from your end and then I will be able to guide you. With remote I can directly work on your computer and walk you through the setup process.
It will be very convenient and easy.
I would still recommend you to go for it else let me know we will troubleshoot over this chat window.
As of first step we need to know your wifi name and password.
Note: The computer and the printer needs to be connected to the same wifi network, only then you will be able to access the printer via your computer.
I assume your computer is connected to your wifi wirelessly.
I'll give you a guide which will help you in retrieving your windows password.
Please click this link to access the guide: https://www.microsoft.com/surface/en-gb/support/networking-and-connectivity/how-to-find-your-wireless-network-password?os=windows-10
Keep me posted!
I am here only.