Troubleshooting Guide: HP DeskJet Plus 4155 Won’t Connect to WiFi

The HP DeskJet Plus 4155 is a versatile all-in-one printer that supports wireless connectivity, enabling you to print, scan, and copy documents from virtually any device connected to your network. However, like any technology, you might encounter issues when attempting to connect it to your Wi-Fi network. This comprehensive troubleshooting guide will help you diagnose and resolve common Wi-Fi connectivity problems with your HP DeskJet 4155 Won’t Connect to WiFi.

Understanding the Problem

Before diving into specific troubleshooting steps, it’s essential to understand the potential causes of Wi-Fi connectivity issues. Common reasons why your HP DeskJet Plus 4155 might not connect to Wi-Fi include:

• Incorrect Wi-Fi network settings or password
• Wi-Fi signal interference or weak signal strength
• Printer firmware issues
• Router configuration problems
• Network congestion

Read More: How to Connect HP Deskjet 2655 to WiFi

Step-by-Step Troubleshooting Guide

Follow these steps to identify and resolve Wi-Fi connectivity issues with your HP DeskJet Plus 4155.

1. Initial Checks and Preparations

1. Ensure Wi-Fi is Enabled: Confirm that the Wi-Fi feature on your HP DeskJet Plus 4155 is turned on. The wireless light on the printer should be blinking or solid blue.
2. Check Wi-Fi Signal Strength: Ensure that your printer is within range of your Wi-Fi router. Weak signal strength can prevent the printer from connecting.
3. Restart Devices: Power cycle your printer, router, and the device you’re using for setup (computer or smartphone). Sometimes, a simple restart can resolve connectivity issues.

2. Verify Network Details

1. Correct Network Name (SSID): Make sure you are selecting the correct Wi-Fi network name (SSID) during the setup process.
2. Correct Password: Double-check that you are entering the correct Wi-Fi password. Wi-Fi passwords are case-sensitive, so ensure that caps lock is not on if it shouldn’t be.

3. Reset Network Settings on the Printer

Resetting the network settings can resolve many connectivity issues. Here’s how to reset the network settings on your HP DeskJet Plus 4155:

1. Restore Network Defaults: Press and hold the Wireless and Cancel buttons simultaneously for 3 seconds. The Wireless light will blink, indicating that the network settings have been reset.
2. Reconfigure Wi-Fi: Use the HP Smart app or the WPS method to reconfigure the Wi-Fi settings.

4. Using the HP Smart App for Setup

The HP Smart app is a user-friendly tool that simplifies the Wi-Fi setup process. Follow these steps:

1. Download the HP Smart App: Go to the App Store (iOS) or Google Play Store (Android) and download the HP Smart app.
2. Open the App: Launch the app and either create an HP account or sign in if you already have one.
3. Add Your Printer: Tap the “+” sign in the app to add a new printer. The app will search for available printers.
4. Select Your Printer: Choose “HP DeskJet Plus 4155” from the list. The app will guide you through the process of connecting the printer to your Wi-Fi network. Follow the on-screen instructions carefully.
5. Complete the Setup: Once connected, the app will confirm the successful connection.

5. Using WPS for Setup

If your router supports WPS (Wi-Fi Protected Setup), this method can quickly connect your printer to the Wi-Fi network. Follow these steps:

1. Prepare the Printer: On the printer’s control panel, press and hold the Wireless button until the Wireless light starts blinking.
2. Activate WPS on Your Router: Within 2 minutes, press the WPS button on your router. The printer will automatically connect to the network.

6. Troubleshooting Network and Router Issues

Sometimes, the issue may lie with your router or network settings. Here’s what you can do:

1. Router Firmware Update: Ensure your router’s firmware is up-to-date. Check the manufacturer’s website for any available updates.
2. Router Configuration: Ensure that your router is configured to allow new devices to connect. Disable MAC address filtering if it’s enabled.
3. Change Wi-Fi Channel: Switch to a different Wi-Fi channel to avoid interference from other networks.

7. Advanced Troubleshooting

If basic troubleshooting steps don’t resolve the issue, consider these advanced troubleshooting steps:

1. Assign a Static IP Address: Sometimes, assigning a static IP address to your printer can resolve connectivity issues. Access your router’s settings and reserve an IP address for your printer.
2. Check Firewall Settings: Ensure that your router’s firewall isn’t blocking the printer from accessing the network.
3. Update Printer Firmware: Ensure your printer’s firmware is up-to-date. You can check for updates through the HP Smart app or the HP Support website.

8. Troubleshooting Specific Error Messages

If you receive specific error messages during the setup process, here are some common ones and their solutions:

1. Printer Not Found: Ensure the printer is within range of the Wi-Fi router, and Wi-Fi is enabled. Restart the printer and router, and try the setup again.
2. Incorrect Wi-Fi Password: Double-check the password you entered and ensure it matches the one used for your network.
3. Unable to Connect: Move the printer closer to the router to improve signal strength. Ensure no other devices are causing interference.

9. Using USB for Initial Setup

If wireless setup continues to be problematic, you can use a USB cable for the initial setup and then switch to wireless mode:

1. Connect via USB: Temporarily connect the printer to your computer using a USB cable.
2. Install Printer Software: Download and install the printer software from the HP Support website. Follow the on-screen instructions.
3. Switch to Wireless Mode: During the installation process, select the option to switch to wireless mode. Enter your Wi-Fi network details and complete the setup.

10. Contact HP Support

If you’ve tried all the above steps and your HP DeskJet Plus 4155 still won’t connect to Wi-Fi, it might be time to contact HP Support for further assistance. They can provide more detailed troubleshooting steps and support specific to your situation.

Preventing Future Connectivity Issues

To prevent future connectivity issues, follow these tips:

1. Regularly Update Firmware: Keep your printer and router firmware updated to ensure compatibility and performance.
2. Maintain Optimal Router Placement: Place your router in a central location, away from interference, to ensure strong and stable Wi-Fi coverage.
3. Monitor Network Traffic: Limit the number of devices connected to your network during critical printing tasks to prevent congestion.

Conclusion

Connecting your HP DeskJet Plus 4155 to Wi-Fi can sometimes be challenging, but with the right troubleshooting steps, you can resolve most issues and enjoy the convenience of wireless printing. By following this comprehensive guide, you can diagnose and fix common connectivity problems, ensuring your printer operates smoothly and efficiently. Regular maintenance and proactive measures will help prevent future issues, allowing you to make the most of your HP DeskJet Plus 4155’s capabilities.