Connecting the HP Laser MFP 135a to a Computer via Wi-Fi: A Complete Guide with Error Solutions

If you are connecting the printer for the first time, we recommend using original USB cable The included cable will simplify driver installation. You can later disconnect the cable, leaving only the wireless connection.

⚠️ Attention: if your router uses dual frequency band (2.4 GHz and 5 GHz), printer HP Laser MFP 135a supports only 2.4 GHz. Make sure that the network with this name (SSID) is active, or temporarily disable 5 GHz in the router settings.

Make sure the printer is plugged in | Check that the Wi-Fi light on the printer is not blinking red | Prepare the Wi-Fi network password | Download drivers from the HP website (if you don't have a disc) | Disable the VPN on your computer (it may interfere with printer detection) -->

2. Method 1: Connecting via the printer control panel

This method is suitable if you don't have access to a computer or prefer to configure devices manually. All steps are performed on the printer itself.

Steps to connect:

1. Turn on the printer and wait until it finishes initializing (stops making noise).
2. On the control panel, press the button Wireless (antenna icon).
3. Select an item Wi-Fi Setup Wizard (Wi-Fi Setup Wizard).
4. The printer will begin searching for available networks. When your network appears in the list, select it and press OK.
5. Enter your Wi-Fi password using the arrows and button OKTo switch between registers (upper/lower case letters, numbers), use the button Shift.
6. Confirm your password and wait for the connection to complete. If everything is successful, the indicator will Wireless will light up blue.

If your printer doesn't find your network, check:

• 📶 The distance between the printer and the router (should be no more than 5 meters during setup).
• 🔒 The password is entered correctly (the printer is case sensitive!).
• 🔄 Restart your router if the network is not displayed in the list.

⚠️ Attention: if your router uses hidden network (SSID hidden), the printer will not be able to detect it automatically. In this case, you will need to temporarily make the network visible or use an alternative connection method (via HP Smart).

3. Method 2: Setting up via the HP Smart utility

Program HP Smart Simplifies printer connection and management. It automatically detects devices on the network, installs drivers, and offers additional features (such as printing from cloud services).

Installation and configuration instructions:

1. Download HP Smart With official HP website or from the app store (App Store/Google Play for mobile devices).
2. Install the program and launch it. You may be asked to register an account the first time you launch it. HP (can be skipped).
3. Click Add a printer (Add Printer).
4. If the printer is not yet connected to Wi-Fi, select Setting up a new printer (Set Up a New Printer).
5. Follow the instructions on the screen: the program will prompt you to connect the printer to the computer via USB (temporary connection for transferring Wi-Fi settings).
6. After connecting the cable HP Smart The printer will automatically find the printer and prompt you to select a Wi-Fi network. Enter the password and wait for the setup to complete.
7. Disconnect the USB cable - the printer should now work via Wi-Fi.

The advantages of this method:

• ✅ Automatic driver installation.
• ✅ Ability to control the printer from multiple devices.
• ✅ Access to advanced features (scan to cloud, printing from mobile devices).

4. Installing drivers on your computer

Even if the printer is connected to Wi-Fi, drivers must be installed for it to function properly. Without them, the computer will not be able to send print jobs.

Methods for installing drivers:

We recommend using the first or second method. For manual installation:

After setting up Wi-Fi and installing the drivers, all that's left to do is check that everything is working correctly. Here's how:

Steps to check:

1. Open any document (eg. Word or PDF).
2. Click Ctrl + P (or File → Print).
3. In the list of printers, select HP Laser MFP 135aIf it is not there, click Refresh or Find a printer.
4. Click Seal and wait for the task to complete.

If printing does not start:

• 🔍 Check if the blue indicator is on Wireless on the printer (if it blinks orange, there is no connection to the router).
• 🖨️ Make sure the printer has paper and toner (there should be no warning lights on the panel).
• 🌐 Restart your router and printer (sometimes this solves IP address problems).

6. Solving typical connection errors

Even with proper setup, problems can still arise. Here are the most common errors and how to fix them:

Problem 1: The printer cannot find the Wi-Fi network.

• 📡 Make sure your router is broadcasting a network within the range 2.4 GHz (the printer does not support 5 GHz).
• 🔄 Restart your router and printer.
• 📵 Check if the router is in the "Secure Mode" mode. MAC filtering (it can block new devices).

Problem 2: The computer does not see the printer on the network.

• 🖥️ Update your printer drivers via device Manager.
• 🔧 Check that the printer and computer are on the same subnet (the first three digits of the IP address must match).
• 🛡️ Temporarily disable Windows Firewall.

Problem 3: The printer is connected but does not print.

• 📄 Check the print queue: open Devices and printers, find HP Laser MFP 135a, open the queue and delete stuck tasks.
• 🖨️ Make sure the printer has toner and paper (there should be no warning lights on the panel).
• 🔄 Reinstall the drivers by selecting Delete existing during installation.

Critical Information: If the printer was previously connected to a different Wi-Fi network, it may retain old settings. To reset them, press and hold the button Wireless And Cancel simultaneously for 10 seconds. After resetting, set up the connection again.

7. Additional settings: printing from mobile devices

One of the advantages HP Laser MFP 135a — Support for printing from phones and tablets. For this, you can use: