⚠

warning HP

Error Code LED blinks under Wireless button

Wireless connection issue — printer is not connected to wireless network.

? What Causes This

Printer disconnected from the wireless network; router disconnected.

✓ How to Fix It

Check the printer's Wi-Fi settings and ensure it’s enabled.
Ensure the printer is within range of the router.
Restart both the printer and the router.

This error code appears in:

HP Deskjet 3720 All-in-One Printer