Epson EcoTank ET-4850 Not Connecting to WiFi? 10 Fixes That Work (2026)

The Epson EcoTank ET-4850 not connecting to WiFi is a common wireless printing issue that can interrupt printing, scanning, and other everyday tasks. Whether you are setting up your printer for the first time or reconnecting it after a router change, WiFi connection problems can occur for several reasons.

Your Epson EcoTank ET-4850 may fail to connect because of incorrect network settings, a weak wireless signal, outdated firmware, router compatibility issues, or an incorrect WiFi password.

Fortunately, most connection problems can be resolved without professional assistance. This troubleshooting guide explains why your Epson ET-4850 won't connect to WiFi and provides 10 practical solutions for Windows, Mac, and home wireless networks.

Why Is My Epson EcoTank ET-4850 Not Connecting to WiFi?

Before troubleshooting, understanding the possible causes can help you identify the problem quickly.

Common reasons include:

• Incorrect WiFi password or network selection

• Weak wireless signal between the printer and router

• Router operating on an incompatible wireless configuration

• Outdated printer firmware or software

• Temporary network communication errors

• Changed router name or WiFi password

• Incorrect printer network settings

• Firewall or security software restrictions

• Printer connected to a different network than the computer

• Wireless router blocking new devices

The Epson EcoTank ET-4850 supports 2.4 GHz wireless networking. If your router uses separate 2.4 GHz and 5 GHz network names, choose the compatible 2.4 GHz network when connecting the printer.

10 Fixes for Epson EcoTank ET-4850 WiFi Connection Problems

1. Restart Your Epson Printer and WiFi Router

Restarting your devices can resolve temporary network communication problems.

Follow these steps:

1. Turn off your Epson EcoTank ET-4850.

2. Disconnect your WiFi router from power.

3. Wait approximately 60 seconds.

4. Reconnect the router and allow it to restart completely.

5. Turn your printer back on.

6. Try connecting to WiFi again.

A restart refreshes the network connection and may resolve temporary communication errors.

2. Check Your WiFi Network and Password

An incorrect wireless password is one of the most common reasons an Epson ET-4850 fails to connect.

To reconnect:

1. Open the printer's Home screen.

2. Select the WiFi or network icon.

3. Choose Wi-Fi (Recommended).

4. Select Start Setup or Change Settings, depending on the displayed menu.

5. Choose Wi-Fi Setup Wizard.

6. Select your wireless network.

7. Enter the correct WiFi password.

Make sure the password matches the router settings, including uppercase letters and special characters.

3. Connect to a Compatible 2.4 GHz Network

The Epson EcoTank ET-4850 supports 2.4 GHz WiFi connections.

If your router broadcasts separate network names, select the 2.4 GHz network instead of a 5 GHz-only network.

You can also check whether your router uses WPA2-Personal security, which is commonly compatible with the printer.

If your router uses WPA3-only security, try an appropriate compatible security setting while following your router manufacturer's instructions.

4. Move Your Printer Closer to the Router

A weak wireless signal can cause the Epson EcoTank ET-4850 to disconnect or fail during setup.

Try these improvements:

• Place the printer closer to the wireless router.

• Avoid positioning it behind thick walls.

• Keep it away from large metal objects.

• Reduce interference from nearby wireless devices.

• Avoid placing the printer inside enclosed cabinets.

After repositioning the printer, reconnect it to your WiFi network.

5. Reset the Printer's Network Settings

If your Epson EcoTank ET-4850 WiFi setup keeps failing, restoring the network settings may help.

Follow these instructions:

1. Open the printer's Home screen.

2. Select Settings.

3. Navigate to Restore Default Settings.

4. Choose Network Settings.

5. Confirm the reset.

6. Restart the printer.

7. Run the WiFi Setup Wizard again.

This removes previously saved network configurations, so you will need to reconnect the printer.

6. Update Epson ET-4850 Firmware

Outdated firmware can sometimes cause wireless connectivity problems.

To check for updates:

1. Visit Epson's official support website.

2. Search for EcoTank ET-4850.

3. Select your operating system.

4. Find the available firmware update.

5. Follow Epson's installation instructions.

If the printer cannot access WiFi, use an available USB connection and the supported Epson update utility where applicable.

Avoid interrupting power during firmware installation.

7. Reinstall the Epson Printer Driver

If the printer connects to WiFi but your computer cannot detect it, the installed printer driver may be outdated or incorrectly configured.

For Windows:

1. Open Settings.

2. Select Bluetooth & devices.

3. Click Printers & scanners.

4. Select your Epson ET-4850.

5. Remove the printer if necessary.

6. Download the appropriate driver from Epson.

7. Reinstall the printer.

For Mac, open System Settings > Printers & Scanners, remove the existing printer if needed, and add it again.

8. Check Your Router's Security Settings

Some router settings can prevent the Epson EcoTank ET-4850 from connecting.

Check whether:

• MAC address filtering is enabled.

• Device access restrictions are active.

• Wireless client isolation is preventing communication.

• The router is configured for an unsupported security mode.

If you make changes, preserve appropriate network security and restart the router when required.

9. Use WPS to Connect Your Epson ET-4850

WiFi Protected Setup (WPS) can simplify wireless configuration if your router supports it.

Follow these steps:

1. Turn on the printer.

2. Open the WiFi setup menu.

3. Select Push Button Setup (WPS).

4. Press the WPS button on your router.

5. Follow the printer's on-screen instructions.

6. Wait for the connection confirmation.

WPS availability depends on your router and its configuration. If it is unavailable, use the WiFi Setup Wizard instead.

10. Print a Network Connection Report

If your Epson ET-4850 still cannot connect, print a network connection report to identify the issue.

1. Open the printer's Home screen.

2. Navigate to Settings > Network Settings.

3. Select Connection Check.

4. Print the network connection report.

5. Review any displayed error codes or recommendations.

The report can help identify authentication problems, wireless signal issues, and incorrect network settings.

Follow the recommended actions and test the connection again.

What If Epson ET-4850 Is Connected to WiFi but Not Printing?

Sometimes the printer successfully connects to WiFi but still appears offline on Windows or Mac.

Try the following:

• Confirm the computer and printer are on the same network.

• Clear pending print jobs.

• Restart the printer and computer.

• Check whether the printer is paused or offline.

• Remove and re-add the printer.

• Update the printer driver.

• Verify the printer's IP address using its network status report.

These steps may resolve an Epson ET-4850 connected to WiFi but not printing problem.

Frequently Asked Questions

Why won't my Epson ET-4850 find my WiFi network?

Your printer may not detect the network because of a weak signal, a hidden network name, router configuration problems, or an incompatible wireless band. Check that a compatible 2.4 GHz network is available.

How do I reconnect my Epson EcoTank ET-4850 to WiFi?

Open the printer's WiFi settings, select Wi-Fi Setup Wizard, choose your wireless network, and enter the correct password.

Why does my Epson ET-4850 keep disconnecting from WiFi?

Frequent disconnections may result from wireless interference, unstable router performance, weak signal strength, or network configuration issues.

Can I connect the Epson ET-4850 without WiFi?

Yes. The Epson EcoTank ET-4850 supports USB connectivity, allowing you to connect it directly to a compatible computer without using a wireless network.

Conclusion

The Epson EcoTank ET-4850 not connecting to WiFi problem can often be resolved by restarting the router, checking the WiFi password, using a compatible 2.4 GHz network, resetting network settings, or reinstalling the printer driver.

Start with basic connectivity checks before attempting advanced troubleshooting. If the printer still cannot connect, review its network connection report and consult Epson's official support resources for model-specific assistance.

Disclaimer: This article is an independent troubleshooting guide provided for informational purposes only. It is not affiliated with, endorsed by, or officially associated with Epson. Product names and trademarks belong to their respective owners. For official technical assistance, contact Epson through its verified support channels.