Can wrong Wi-Fi password cause HP printer setup connection error?
https://ansungames.com/hp-printer-wifi-connection-issues/
Yes, entering an incorrect Wi-Fi password is one of the most common causes of HP printer wifi connection errors. When the password is wrong, the printer cannot authenticate with your router, causing network setup to fail, the wireless light to keep blinking, or the HP Smart app to report a "Connection Failed" or "Unable to Connect" error.