You've addressed the printer side. Now the problem is on the computer or network side.
Systematically eliminate these common blockers:
- Distance/Range: Move your computer or phone within 10 feet of the printer. Physical barriers matter.
- VPN: Disconnect any VPN client on the device running HP Smart.
- Wi-Fi Radio: If using a computer with Ethernet, verify the computer's Wi-Fi is enabled.
- Phone Settings: If using a phone, confirm Bluetooth and Location Services are on.
After checking all items above, close the HP Smart app. Do not just minimize it—fully close the application. Wait 10 seconds, reopen it, and start the setup process over.
Heads up: If all else fails, the final step is to power cycle your entire network: turn off the printer, your router, and your computer/phone. Wait 2 minutes. Power on the router first, then the printer, then your device, and try setup one last time.