Diagnosis
When the wireless light on an HP OfficeJet Pro 9015e is solid blue, it indicates that the printer's internal radio is active and believes it is connected to a network. However, this is often a "ghost connection" where the printer has an IP address that is no longer recognized by the computer, or the router has assigned it a new dynamic IP address, breaking the handshake between the OS print spooler and the hardware.
This typically happens due to DHCP lease expiration or a "network collision" where the printer and another device are fighting for the same IP. You can confirm this by swiping down on the printer's control panel, tapping the wireless icon, and checking the IP address. If the IP starts with 169.254.x.x, the printer has failed to get a valid address from your router and is using an Automatic Private IP Address (APIPA), which makes it invisible to your computer despite the blue light being on.
How to Fix It
Before performing a full factory reset or reinstalling the HP Smart app, you must force a network handshake refresh. This clears the stale cache and forces the router to assign a fresh, valid IP address to the printer.
- On the printer's home screen, swipe down from the top to open the dashboard menu.
- Tap the Gear icon (Setup) in the top left corner.
- Navigate to Network Setup and select Restore Network Settings.
- Confirm the action when prompted. The wireless light will blink for a moment as the network card resets.
- Return to the Network Setup menu and select Wireless Settings.
- Tap Wireless Setup Wizard. The printer will scan for available SSIDs.
- Select your specific Wi-Fi network name from the list and enter your password. Ensure you are connecting to the 2.4GHz band if you have a split-band router, as the 9015e is more stable on 2.4GHz over longer distances.
- Once the blue light stays solid, restart your computer to refresh the local network discovery service.
If That Didn't Work
- Disable VPN and Third-Party Firewalls: If you use NordVPN, ExpressVPN, or a corporate firewall, the computer creates a virtual tunnel that hides the local network. Disable the VPN entirely and attempt to print. If it works, go into your VPN settings and enable "Local Network Sharing" or "Invisibility Off."
- Perform a Hard Power Cycle: Shut down the printer and unplug the power cord from the back of the machine. Unplug your router from the wall. Wait exactly 60 seconds. Plug the router back in first and wait for the internet light to stabilize, then plug in the printer. This clears the ARP cache on the router.
- Manually Assign a Static IP: Access the printer's Embedded Web Server (EWS) by typing the printer's IP address into a web browser. Go to the Network tab > IPv4 Configuration. Change the setting from "Automatic/DHCP" to "Manual/Static." Assign an IP address high in your range (e.g., 192.168.1.200) to prevent future IP conflicts.
- Update the Firmware: Sometimes the wireless stack crashes due to outdated firmware. Go to Setup > Printer Maintenance > Update Firmware. If the printer cannot connect to update wirelessly, you may need to temporarily connect it via a USB-A to USB-B cable to the computer to push the update through the HP Smart app.
Heads Up
- Avoid placing the printer directly on top of your router or within 3 feet of a microwave, as this creates signal interference that can drop the connection.
- If you use "HP+" services (the 'e' in 9015e), the printer must maintain a constant internet connection to function; if the cloud connection drops, the printer may refuse to print even if the local wireless is working.
- Disable "Energy Efficient Ethernet" or "Green Ethernet" in your computer's network adapter settings, as this can sometimes put the printer's port into a sleep state that it cannot wake from.
- Always use the same Wi-Fi SSID for both 2.4GHz and 5GHz bands if possible, or ensure the printer is locked to the 2.4GHz band to prevent "band steering" drops.