Connecting the HP LaserJet Pro MFP M125rnw Printer to a Computer via Wi-Fi: A Complete Guide

Wireless printer connection HP LaserJet Pro MFP M125rnw Connecting to a computer via Wi-Fi saves desktop space and allows you to print from multiple devices simultaneously. However, many users encounter difficulties during initial setup: the printer doesn't find the network, drivers fail to install, or the connection keeps dropping. In this article, we'll cover every step—from preparing the equipment to diagnosing common errors.

Feature of the model M125rnw It supports duplex printing and network scanning, but proper configuration is required on both the device and the computer. If you've previously connected printers only via USB, Wi-Fi setup may seem complicated. We'll simplify the process with step-by-step instructions and illustrations of key points.

Hardware and network requirements before connecting

Before you begin setup, make sure your infrastructure meets the minimum requirements. Printer HP LaserJet Pro MFP M125rnw supports wireless communication standards 802.11b/g/n on frequency 2.4 GHzThis means that:

• 📶 Your router must operate within the range 2.4 GHz (networks 5 GHz are not supported).
• 🔌 The printer and computer must be in an area with reliable Wi-Fi coverage (signal strength at least 70%).
• 🖥️ Your computer must have one of the following operating systems installed: Windows 10/11, macOS 10.14+ or Linux (with CUPS support).
• 🔒 The network must use encryption WPA2-PSK (obsolete WEP or open networks are not recommended).

If your router is in the mode 5 GHz, turn it on temporarily 2.4 GHz or set up separate SSIDs for each band. Also, make sure that the router's "Speed" mode is disabled. 802.11r (Fast Roaming) - It may cause connection issues with some HP printers.

⚠️ Attention: Printer M125rnw Doesn't support networks with hidden SSIDs. If your network isn't broadcasting its name, temporarily enable visibility or connect via WPS.

Preparing the printer for wireless connection

Before setting up Wi-Fi, you need to reset the printer and ensure it's ready for configuration. Follow these steps:

1. Plug the printer into a power outlet and turn it on using the power button (front right). Wait for the self-test to complete (the lights will stop flashing).
2. Make sure there is paper of the correct size in the tray. A4 — the printer can print a report on network settings.
3. Press and hold the button Wireless (antenna icon) on the control panel for 3 seconds until the wireless indicator flashes.

If the printer was previously connected to a different network, reset the network settings:

On the control panel:
1. Click "Settings" (gear icon)
2. Select "Network" → "Wireless Network"
3. Find "Reset network settings" and confirm

Make sure the printer is turned on and has passed the self-test|

Check that there is paper in the tray|

Reset old network settings (if any)|

Hold the Wireless button to activate the setup mode-->

⚠️ Attention: After resetting the printer may automatically print a sheet with factory settings, including MAC address And serial numberSave this sheet - you will need it to diagnose problems.

Methods for connecting a printer to Wi-Fi

Model M125rnw supports three wireless connection methods: via WPS, using printer control panel and through HP Smart SoftwareLet's consider each option, indicating the pros and cons.

Method 1: Connecting via WPS (fastest)

If your router supports the technology Wi-Fi Protected Setup (WPS), this method will take no more than 1 minute:

1. Activate the WPS mode on your router (usually the button with the inscription WPS or a lock icon).
2. Press and hold the button for 2 minutes Wireless on the printer until the indicator blinks.
3. Wait until the wireless indicator lights up blue (connection established).

Advantages of this method: no password entry or menu navigation required. Disadvantages: not all routers support WPS, and some disable this feature for security reasons.

Method 2: Manual connection via the printer panel

If WPS is not available, use the built-in menu:

1. On the printer control panel, go to Settings → Network → Wireless → Wi-Fi Setup.
2. Select your network from the list (or enter SSID manually if it is not displayed).
3. Enter your Wi-Fi password using the arrows and button OK (case important!).
4. Confirm saving the settings. The wireless network indicator should light up. blue.

Method 3: Connecting via HP Smart Software

Utility HP Smart automates the process and allows you to control the printer from a PC or smartphone:

1. Download and install HP Smart for your OS.
2. Run the program and select Add a printer.
3. Follow the wizard instructions by selecting the option Wireless connection.
4. The app will automatically find the printer on the network or prompt you to enter Wi-Fi details manually.

This method is convenient for beginners, but requires installing additional software. HP Smart also allows you to configure cloud printing (ePrint) and remote control.

Installing drivers on a computer

Even after successfully connecting the printer to Wi-Fi, the computer will not be able to communicate with it without the correct drivers. HP LaserJet Pro MFP M125rnw two components are required:

• 🖨️ Printer driver — provides printing of documents.
• 📄 Scanner driver — required for the network scanning function to work.

Download the official software from the HP website:

1. Go to https://support.hp.com
2. Enter the model: "LaserJet Pro MFP M125rnw"
3. Select your OS and download the "Full Software Package"

Install the drivers following the wizard's instructions. When selecting the connection type, specify Wireless network.

⚠️ Attention: If after installing the drivers the printer does not appear in the list of devices, check that the service is enabled in the Windows settings. Print Manager (services.msc → Print Spooler).

Diagnosing and troubleshooting common problems

Even with proper configuration, errors can still occur. Below are solutions for the most common issues:

What should I do if my printer is connected to Wi-Fi, but my computer can't see it?

1. Check that the printer and computer are on the same subnet (compare the first three octets of the IP addresses).

2. Temporarily disable Windows Firewall (Control Panel → Firewall → Turn off).

3. Manually add the printer by IP address:

- In Windows: Settings → Devices → Printers and Scanners → Add a Printer → Add Manually via TCP/IP

- Specify the printer IP (can be found in the configuration report).

Setting up additional functions

After successful connection, we recommend activating useful options:

• 🌐 HP ePrint — Printing by email. To activate, register your printer on hpconnected.com.
• 🔄 Double-sided printing by default: In the printer driver, select Properties → Features Tab → Double-Sided Printing.
• 🔒 Access protection: in the printer menu (Settings → System → Administration) set a PIN code for scanning.

Wireless connection security

Wi-Fi-enabled printers are vulnerable to attacks if security isn't configured. Follow these recommendations:

• 🔐 Change the default printer administrator password (the default is often blank or 123456).
• 📡 Turn off WPS After setup, this protocol has vulnerabilities.
• 🖥️ Update your printer firmware via Settings → Maintenance → Software Update.
• 🌍 If the printer is used only on a local network, disable it HP Web Services in its settings.

Critical vulnerability: HP printers with firmware versions older than 2021 are vulnerable to attack via port 9100. Update your firmware, even if your printer is working properly!

FAQ: Frequently asked questions about connection

Is it possible to connect a printer to Wi-Fi without a computer?

Yes, use the printer control panel or mobile app. HP Smart (available for Android/iOS). To do this:

1. Install the application and register.
2. Select "Add a printer" and follow the instructions.
3. The app will prompt you to enter Wi-Fi details or use Bluetooth for setup.

The printer is connected to Wi-Fi, but it won't print from my laptop. What should I do?

Please check the following points:

• Make sure the printer is installed as default device (Settings → Devices → Printers & Scanners).
• Restart the service Print Manager:

1. Press Win + R, enter services.msc
2. Find "Print Spooler", right-click → Restart

• Remove the printer from the system and add it again.

How do I connect my printer to Wi-Fi if the Wireless button doesn't work?

If the hardware button does not respond:

1. Reset your printer to factory settings (Settings → Service → Reset settings).
2. Connect the printer to your computer via USB and update the firmware via HP Smart.
3. If the button is physically damaged, use the control panel to set up Wi-Fi (see Method 2 (in this article).

If the problem persists, contact the service center - the control board may be faulty.

Can this printer be connected to multiple Wi-Fi networks?

No, HP LaserJet Pro MFP M125rnw Supports connection to only one Wi-Fi network at a time. However, you can:

• Quickly switch between networks using the printer menu.
• Use access point mode (Wi-Fi Direct) for direct connection of devices without a router.

How to find the IP address of a printer on the network?

There are three ways:

1. Print it out network configuration report (Settings → Reports → Configuration Report).
2. Check the list of devices in the router's web interface (usually at 192.168.1.1 or 192.168.0.1).
3. Use the utility HP Print and Scan Doctor (download from the HP website) - it will show the IP and connection status.