hp officejet pro 9015e setup keeps failing, i restored network settings but hp smart still says 'printer not found'. now what?

Diagnosis

The "Printer Not Found" error on the HP OfficeJet Pro 9015e, even after a network restore, typically stems from a communication mismatch between the HP Smart app and the printer's broadcast state. When you restore network settings, the printer enters "Setup Mode" (indicated by a pulsing purple light on the front panel). However, the HP Smart app often caches the previous, failed connection attempt or attempts to locate the device via a specific IP address that has since changed. This failure is frequently caused by "Network Isolation" or "AP Isolation" on modern dual-band routers. The 9015e supports both 2.4GHz and 5GHz, but if your phone/PC is on 5GHz and the printer has defaulted to 2.4GHz, some routers prevent them from "seeing" each other despite being on the same SSID. Additionally, if you have a VPN active or a strict Windows Firewall profile, the UDP packets used for device discovery (mDNS/Bonjour) are blocked, leaving the app blind to the printer's presence.

How to Fix It

To resolve this, you must force a clean handshake between the hardware and the software. Follow these steps exactly:

1. Hard Power Cycle: While the printer is ON, unplug the power cord from the back of the machine and the wall outlet. Wait 60 seconds. Plug it back in. This clears the temporary network cache on the printer's internal NIC.
2. Force Setup Mode: On the printer control panel, swipe down the dashboard, touch the Gear icon (Settings) > Network Setup > Restore Network Settings. The status light should now be pulsing purple.
3. Clear App Cache: On your mobile device or PC, completely close the HP Smart app. If on Android, go to Settings > Apps > HP Smart > Storage > Clear Cache. If on Windows, restart the computer to clear the print spooler and network discovery cache.
4. Disable Network Blockers: Turn off any VPNs (NordVPN, ExpressVPN, etc.) and disable "Public Network" profiles in Windows. Ensure your network is set to "Private."
5. The "Near-Field" Connection: Move your setup device (phone or laptop) within 3 feet of the printer. Ensure the device is connected to the 2.4GHz band of your Wi-Fi if your router separates them.
6. Re-run Setup: Open HP Smart, click the (+) Add Printer button. When prompted, select the "OfficeJet Pro 9010 series" (the 9015e falls under this series). Follow the prompts to enter your Wi-Fi password.

If That Didn't Work

• Manual IP Connection: If the app still fails, print a Network Configuration Page from the printer menu. Find the "IP Address" (e.g., 192.168.1.15). Type this IP address directly into a web browser on your computer. If the printer's internal web server (EWS) opens, the printer is on the network, and the issue is strictly the HP Smart app. In this case, bypass the app and add the printer via Windows "Printers & Scanners" using the IP address.
• Wi-Fi Direct Bypass: Turn on Wi-Fi Direct on the printer control panel. Connect your computer's Wi-Fi directly to the printer's broadcast signal (usually named DIRECT-hp-OfficeJet... ). Once connected, use the HP Smart app to "bridge" the printer to your main home Wi-Fi.
• Router Frequency Adjustment: Access your router settings and temporarily disable the 5GHz band or give the 2.4GHz and 5GHz bands different names (SSIDs). Connect your phone to the 2.4GHz band and attempt the setup again. The 9015e is significantly more stable on 2.4GHz.
• DNS Flush: On a Windows PC, open Command Prompt as Administrator and type ipconfig /flushdns then press Enter. This removes outdated network paths that might be directing the HP Smart app to a dead IP address.

Heads Up

• Avoid USB Setup: Do not connect the printer via USB during the wireless setup process; this often triggers a "Mixed Mode" error that prevents the wireless radio from activating.
• HP+ Warning: If you chose the "e" (HP+) version of the 9015e, the printer must remain connected to the internet to function. If the connection drops, the printer may lock you out of printing until the cloud handshake is restored.
• Firmware Updates: Once connected, immediately check for firmware updates in the HP Smart app. Early versions of the 9015e firmware had known "sleep mode" bugs where the printer would drop off the network and never wake up.
• Static IP: For long-term stability, use the Embedded Web Server (EWS) to assign a Static IP to the printer. This prevents the "Printer Offline" error that occurs when the router assigns a new IP address via DHCP.