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How to Fix Epson WorkForce WF-3640 Won't Connect To WiFi : A Step-by-Step Guide

Mills Stanley Updated by Mills Stanley

Epson WorkForce WF-3640 Won't Connect To WiFi

The Epson WorkForce WF-3640 is a versatile all-in-one printer designed for both home and office use, offering scanning, copying, and printing capabilities. However, like many wireless devices, it can sometimes face connectivity issues when trying to link with a WiFi network. If your Epson WF-3640 printer won’t connect to WiFi, it can be frustrating, especially if you rely on the convenience of wireless printing.

This step-by-step guide will help you identify the root cause of the WiFi connection problem and provide solutions to get your printer back online.

Step 1: Ensure Basic Requirements are Met

Before diving into troubleshooting, ensure that the following basic requirements are in place:

  • WiFi Network is Functioning Properly: Verify that your WiFi network is active and working by connecting another device, such as a smartphone or laptop, to the network.
  • Printer is in Range of Router: Make sure your printer is placed within a reasonable range of your router. Poor signal strength can prevent a connection.
  • Network Password is Correct: Double-check that you have the correct WiFi network name (SSID) and password when attempting to connect the printer.

Step 2: Restart the Printer, Router, and Computer

Sometimes, the simplest fix is the most effective. Restarting all devices involved can resolve temporary software or connection issues.

To restart the devices:
  1. Turn off your printer by pressing the power button.
  2. Unplug the router for 30 seconds, then plug it back in and wait for it to fully restart.
  3. Restart your computer or any device from which you are attempting to print.
  4. Turn on the printer again.

After restarting all devices, attempt to reconnect your Epson WF-3640 to the WiFi network.

Step 3: Verify Printer Settings

Your printer’s settings may be misconfigured, preventing a proper WiFi connection. Follow these steps to review and adjust the settings:

Check Printer’s Wireless Setup
  1. Access the Control Panel: On your Epson WF-3640, use the control panel to navigate to the Setup menu.
  2. Select Network Settings: From the Setup menu, choose Network Settings.
  3. Run WiFi Setup: Choose the Wireless Setup Wizard option. This will guide you through selecting your network and entering the password.

Ensure that you select the correct network and that the password is entered accurately. Typos are a common reason for WiFi connection failure.

Step 4: Update the Printer Firmware

Outdated printer firmware can cause connectivity issues, especially if your router has been updated recently. Updating the firmware may fix the problem.

Steps to update firmware:
  1. Connect your printer via USB: Temporarily connect your Epson WF-3640 to your computer via USB cable, if it’s not already connected.
  2. Visit Epson's Support Website: Go to the official Epson website and navigate to the support section for the Epson WF-3640.
  3. Download Firmware Update: Download and install the latest firmware version for your printer.
  4. Run the Firmware Update Tool: Follow the on-screen instructions to update your printer’s firmware. After the update is complete, restart your printer.

After updating, try connecting to WiFi again.

Support

Step 5: Reconfigure Wireless Network Settings

If your Epson WF-3640 still won’t connect to WiFi, resetting the network settings on the printer can help resolve conflicts or incorrect configurations.

To reset network settings:
  1. Open the Control Panel: Go to the printer’s Setup menu.
  2. Select Restore Default Settings: Choose Restore Default Settings and then select Network Settings. This will erase all previous network configurations.
  3. Reconnect to WiFi: After resetting, use the Wireless Setup Wizard to connect the printer to your network again.

Make sure you input the correct WiFi password during this process.

Step 6: Disable MAC Address Filtering on the Router

Some routers use MAC Address Filtering as a security feature to control which devices can connect to the network. If this feature is enabled, it may be blocking your printer from connecting.

Steps to check MAC Address Filtering:
  1. Log into Your Router: Open a web browser on your computer and enter your router’s IP address. This information is usually found on the back of the router or in the user manual.
  2. Access Security Settings: Once logged in, navigate to the security or advanced settings section of your router’s configuration page.
  3. Check for MAC Address Filtering: Look for MAC Address Filtering and see if it is enabled. If it is, add your Epson WF-3640’s MAC address to the allowed devices list. The MAC address can usually be found on the printer’s network status sheet, which you can print from the Network Settings menu.

Alternatively, you can disable MAC Address Filtering altogether if you’re comfortable doing so, though this may reduce the security of your network.

Step 7: Assign a Static IP Address

Sometimes, printers have trouble connecting to WiFi if the IP address assigned by the router keeps changing. Assigning a static IP address to the printer can stabilize the connection.

Steps to assign a static IP:
  1. Log into Your Router: Using a web browser, log into your router’s settings page.
  2. Navigate to DHCP Settings: Look for the DHCP or LAN settings.
  3. Assign a Static IP: Locate the section for Static IP assignments or IP address reservation. Input the printer’s MAC address and assign it a static IP address that is outside of the router’s DHCP range (e.g., 192.168.1.200).
  4. Set the IP Address on the Printer: Go to the printer’s Network Settings and manually enter the static IP address.

Once this is done, your printer should be able to consistently connect to the network.

Step 8: Update or Reinstall Printer Drivers

Sometimes, driver issues can prevent your printer from establishing a WiFi connection. Updating or reinstalling the printer drivers on your computer may resolve this.

Steps to reinstall printer drivers:
  1. Uninstall the Current Driver: On your computer, go to Control Panel > Devices and Printers. Right-click the Epson WF-3640 and select Remove device.
  2. Download Latest Driver: Visit the Epson Support page, enter your printer model, and download the latest driver for your operating system.
  3. Install the Driver: Follow the instructions to reinstall the driver on your computer.
  4. Reconnect to WiFi: Once the driver is installed, attempt to reconnect your printer to the WiFi network.

Step 9: Check Router Compatibility and Settings

If your printer is still not connecting to WiFi, there may be an issue with your router’s settings or compatibility.

1. Check Router Settings
  • Check Wireless Mode: Some routers have settings that allow them to operate on different wireless modes (e.g., 802.11b, 802.11g, 802.11n). Ensure that your router is using a mode compatible with your Epson printer.
  • 2.4 GHz vs. 5 GHz: The Epson WF-3640 only supports 2.4 GHz networks. If your router is operating on 5 GHz only, you need to enable the 2.4 GHz band in your router’s settings.
2. Update Router Firmware

Outdated router firmware may cause compatibility issues with newer devices, including your printer. Visit the router manufacturer’s website to download and install the latest firmware version.

Conclusion

WiFi connection issues with the Epson WorkForce WF-3640 can stem from a variety of factors, ranging from simple configuration errors to more complex router settings. By following the steps outlined in this guide, you should be able to resolve most connectivity problems and get your printer back online.

If none of the above steps resolve the issue, you may need to contact Epson Support or consult with a network specialist to further diagnose and repair the problem. Implementing these troubleshooting steps can often prevent future connection problems, ensuring smooth and efficient printing.

FAQ for WorkForce WF-3640 Won't Connect to WiFi

Q1: Why is my Epson WorkForce WF-3640 not connecting to WiFi?

A1: Common reasons include incorrect WiFi settings, network issues, outdated firmware, or router compatibility problems. Ensure your network password is correct, and check that your printer is within range of your router.

Q2: How do I restart my Epson WF-3640?

A2: Turn off the printer using the power button. Unplug it from the power source for about 30 seconds, then plug it back in and turn it on.

Q3: How can I reset the network settings on my WF-3640?

A3: Go to the printer’s Setup menu, select Network Settings, and choose Restore Default Settings. Then use the Wireless Setup Wizard to reconnect to your WiFi network.

Q4: What should I do if my router is blocking the printer?

A4: Check if MAC Address Filtering is enabled on your router. If so, add your printer’s MAC address to the allowed devices list, or temporarily disable MAC Address Filtering.

Q5: How can I update the printer’s firmware?

A5: Connect the printer to your computer via USB, visit the Epson Support website, download the latest firmware for your model, and follow the installation instructions provided.

Q6: How do I assign a static IP address to my printer?

A6: Log into your router’s settings, locate the DHCP or LAN settings, and reserve a static IP address for your printer’s MAC address. Then enter this IP address in the printer’s network settings.

Q7: What if updating drivers doesn’t fix the issue?

A7: Ensure you have the latest drivers installed. If the problem persists, consider checking for router compatibility issues or contacting Epson Support for further assistance.

Q8: How can I check if my router is compatible with the printer?

A8: Verify that your router supports the 2.4 GHz band, as the WF-3640 does not support 5 GHz networks. Ensure your router’s wireless mode is compatible with the printer (e.g., 802.11b/g/n).

Q9: My printer keeps disconnecting from WiFi. What can I do?

A9: Ensure your printer is within range of your router, and consider assigning a static IP address. Check for interference or congestion on your network and try restarting your router.

Q10: Where can I get additional help if these solutions don’t work?

A10: Contact Epson Support for further assistance or consult the user manual for more troubleshooting steps specific to your model.

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