Hello!Thank you for your question. I am Shefin and I look forward to helping you with your issue today.
Please be informed that the passphrase is case sensitive. make sure that you entering it properly.
Make sure that you are using the same wireless network on both the computer and the printer.
Do you have a printer USB cable with you?
S H E F I N
I would suggest you setup wireless using USB cable.
Can I access your computer remotely and help you resolve the issue?
If you have the printer driver disc, install the printer using USB cable.
After installing it properly using USB cable, change the connection from USB to wireless by following the instructions in the link below. The below link listed instructions for both and Mac OS X.
If the issue persists, or you have any questions, please be back and let me know.If you appreciate my service, please rate it EXCELLENT by clicking the EXCELLENT (5 Stars) and Submit. My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back, I am happy to address follow-up questions. Thank you for your business!Thank you!S H E F I N