What this means

When your printer refuses to talk to your wireless network or the HP Smart app cannot find it, a blinking blue Wi-Fi light means it is stuck in setup mode. The wireless link is broken, but the hardware is fine.

This is rarely a dead printer or a dropped internet connection. A simple communication block causes the failure. Your router might be broadcasting on a 5GHz band while the printer requires a 2.4GHz network. The HP Smart app often lacks the Bluetooth and local network permissions required to see the machine.

Hidden router settings like MAC address filtering will block new devices. Restoring network defaults clears old passwords from memory, while a power cycle clears temporary glitches in both your router and the printer.

Common causes

  • Router is broadcasting on a 5GHz band instead of 2.4GHz
  • Printer Wi-Fi settings need a reset
  • HP Smart app lacks necessary permissions
  • Printer and computer are on different networks
  • Firewall or VPN is blocking local network discovery
  • Printer is stuck in an error state

What to check first

  1. 1Verify your router is broadcasting a 2.4GHz network
  2. 2Ensure your phone or computer is connected to the same Wi-Fi network
  3. 3Check that the printer is within range of the router

Step-by-step fix

  1. 1

    Restart Devices

    Turn off your printer, router, and computer. Wait thirty seconds. Turn on the router first, then the printer, and finally your computer. Try connecting again.

    Do not unplug the router while it is updating firmware.

  2. 2

    Restore Network Defaults

    Go to the printer control panel. Navigate to the network or wireless settings menu. Select restore network defaults or restore factory settings. This clears old network configurations.

    You will need to re-enter your Wi-Fi password after this step.

  3. 3

    Use WPS Push Button

    Put the printer into Wi-Fi setup mode using the control panel. Press the WPS button on your wireless router within two minutes. Wait for the printer Wi-Fi light to turn solid.

  4. 4

    Check Network Band

    Log into your router admin page. Ensure the 2.4GHz band is active. Many HP printers cannot connect during setup if only the 5GHz band is active.

  5. 5

    Run HP Print and Scan Doctor

    Download and run the HP Print and Scan Doctor tool on a Windows computer. The software automatically finds and fixes communication and driver issues.

  6. 6

    Reinstall HP Smart App

    Close the HP Smart app on your mobile device or computer. Restart the device. Open app settings and ensure Bluetooth and local network permissions are allowed. Reopen the app and search for the printer.

When to contact a professional

Always unplug the printer before checking any physical parts to avoid electrical shock. Call your IT professional or internet service provider if your router uses enterprise network security, VLAN isolation, or MAC address filtering that blocks new devices. Stop troubleshooting if the internal Wi-Fi hardware has physically failed. These repairs require professional service and involve warranty considerations.