A solid blue Wi-Fi light indicates the printer is not in Wi-Fi setup mode. To restart setup mode: swipe down to open the Dashboard, touch the settings icon > Network Setup > Restore Network Settings. Confirm 'Yes'. Wait 60 seconds. Close and reopen HP Smart.
If that didn't work: Check for a VPN connection on your setup device and disconnect it. Ensure Bluetooth and location services are enabled on a mobile device.
Heads up: The printer's Wi-Fi setup mode has a timeout period. If the light isn't blinking, the process has stopped and needs a restart.