# 1-866-203-7571 How to fix HP printer error E15 / 15 (Wi-Fi Connection Failed)?

HP printers are widely used for both home and office environments due to their reliability and high-quality printing. However, like all technology, they are not immune to occasional errors. One of the most common errors users face is **HP printer error E15 / 15**, which indicates that the printer has failed to connect to a Wi-Fi network. This guide will provide you with all the necessary steps to troubleshoot and fix this issue efficiently.

## **Understanding HP Printer Error E15 / 15**

Before diving into the solutions, it’s important to understand what causes this error. The E15 error generally arises when your HP printer cannot establish a stable connection with your Wi-Fi network. The common causes include:

1. **Incorrect Wi-Fi Password:** A typo in your password can prevent the printer from connecting.
2. **Weak Wi-Fi Signal:** If the printer is too far from the router, it may fail to connect.
3. **Network Configuration Issues:** Sometimes, the network settings on the printer or router conflict.
4. **Firmware Issues:** Outdated printer firmware can cause connectivity errors.
5. **Router or ISP Problems:** Temporary outages or router misconfigurations can disrupt the connection.
6. **Interference from Other Devices:** Electronic devices near the printer can cause signal interference.

Understanding these causes helps you narrow down the troubleshooting steps effectively.

## **Step 1: Check Your Wi-Fi Network**

Start by verifying your Wi-Fi network:

1. **Ensure the Wi-Fi is Active:** Confirm that your Wi-Fi network is functioning correctly on other devices such as smartphones, tablets, or computers.
2. **Check Signal Strength:** Ensure the printer is within range of the router. Weak signals can cause intermittent connectivity issues.
3. **Check Network Name (SSID):** Make sure your printer is trying to connect to the correct Wi-Fi network, especially if you have multiple networks at home.
4. **Confirm Password:** Double-check the Wi-Fi password and re-enter it on the printer carefully.

## **Step 2: Restart Devices**

A simple restart can resolve many connectivity issues:

1. **Restart the Printer:** Turn off the printer, unplug it from the power source for 30 seconds, and then turn it back on.
2. **Restart the Router:** Unplug the router for 30 seconds and plug it back in. This resets network settings and clears temporary issues.
3. **Restart Your Device:** If you are printing from a computer or mobile device, restart it to ensure it reconnects to the network correctly.

## **Step 3: Reconnect the Printer to Wi-Fi**

After checking your network and restarting devices, reconnect your printer:

1. **Using the Control Panel:**

* Go to the **Wireless or Network Settings** menu on your HP printer.
* Select **Wireless Setup Wizard**.
* Choose your Wi-Fi network and enter the password carefully.
2. **Using HP Smart App:**

* Download and install the **HP Smart App** on your mobile device or computer.
* Open the app and follow the on-screen instructions to add your printer.
* This method often resolves connectivity errors automatically.

## **Step 4: Update Printer Firmware**

Outdated firmware can cause Wi-Fi errors. Here’s how to update your HP printer firmware:

1. **Via HP Smart App:**

* Open the HP Smart App.
* Go to **Printer Settings > Printer Updates**.
* Follow instructions to install the latest firmware.
2. **Via Printer Control Panel:**

* Navigate to **Settings > Printer Maintenance > Update Printer Firmware**.
* Make sure the printer is connected to the internet during this process.
3. **Via HP Official Website:**

* Visit [HP Support](https://support.hp.com/) and download the latest firmware for your printer model.
* Install the firmware using a USB connection or network update.

## **Step 5: Reset Network Settings on the Printer**

Sometimes, residual settings can interfere with Wi-Fi connectivity. Resetting the printer network settings can help:

1. Go to the **Settings > Network Setup > Restore Network Settings**.
2. Confirm the reset and allow the printer to reboot.
3. Reconnect to your Wi-Fi network using the correct password.

## **Step 6: Check Router Settings**

Router misconfigurations can prevent your printer from connecting:

1. **Check for MAC Filtering:** Ensure your router is not blocking the printer’s MAC address.
2. **Use 2.4 GHz Network:** Most HP printers are compatible with 2.4 GHz networks, not 5 GHz.
3. **Update Router Firmware:** Outdated router firmware can interfere with connections.
4. **Enable DHCP:** Make sure the router assigns an IP address automatically to connected devices.

## **Step 7: Temporarily Disable Firewalls or Security Software**

Sometimes, firewalls or antivirus software on your computer can block communication with the printer:

1. Disable firewalls temporarily and try reconnecting.
2. If it works, add your HP printer as an exception in your firewall settings.

## **Step 8: Perform a Wireless Test**

Many HP printers allow you to perform a wireless test:

1. Navigate to **Settings > Network Setup > Wireless Test**.
2. This test identifies connectivity issues and provides guidance on resolving them.

## **Step 9: Use WPS (Wi-Fi Protected Setup) Method**

If manual setup fails, try WPS:

1. Press the **WPS button** on your router.
2. Within 2 minutes, press the **Wireless button** on your HP printer.
3. Wait for the connection to establish automatically.

## **Step 10: Contact HP Support**

If none of the above steps resolves the issue, contacting HP support is the safest option. You can call **1-866-203-7571 (USA)** for assistance. Their experts can provide:

* Advanced troubleshooting
* Firmware reinstallation
* Hardware checks for your printer

## **Preventing HP Printer Wi-Fi Issues in the Future**

1. **Keep Firmware Updated:** Always install the latest firmware updates for both printer and router.
2. **Stable Network Placement:** Place the printer close to the router, away from obstructions.
3. **Consistent SSID and Password:** Avoid changing network names and passwords frequently.
4. **Avoid Signal Interference:** Keep devices like microwaves, cordless phones, or Bluetooth devices away from your printer.
5. **Regular Reboots:** Restart your router and printer occasionally to prevent connectivity errors.

## **Conclusion**

HP printer error E15 / 15 (Wi-Fi Connection Failed) can be frustrating, but most issues are easily resolved by following systematic troubleshooting steps. Start by checking your network, reconnecting the printer, updating firmware, and adjusting router settings. If the problem persists, HP support at **1-866-203-7571** can provide expert guidance.

By following these steps, your HP printer should regain Wi-Fi connectivity and continue providing seamless printing. Regular maintenance and monitoring of your printer and network can prevent these errors in the future.