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If You Are Having Difficulty with Your Machine's Network

Related Models:DCP‑T420W / DCP‑T425W / DCP‑T426W / DCP‑T428W
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For technical help, you must contact Brother customer support.

If you think there is a problem with your machine, check the following topics. You can correct most problems yourself.

If you need additional help, go to your model's FAQs & Troubleshooting page at support.brother.com.

I Cannot Complete the Wireless Network Setup Configuration

Turn your wireless router off and back on. Then, try to configure the wireless settings again. If you are unable to resolve the problem, follow the instructions below:

Investigate the problem using the WLAN Report.

Cause Action Interface
Your security settings (SSID/Network Key) are not correct.
  • Confirm the security settings using Wireless Setup Helper. For more information and to download the utility, go to your model's Downloads page at support.brother.com.
  • Select and confirm that you are using the correct security settings.
    • See the instructions supplied with your wireless LAN access point/router for information on how to find the security settings.
    • The manufacturer's name or model number of the wireless LAN access point/router may be used as the default security settings.
    • Consult with the access point/router manufacturer, your Internet provider, or network administrator.
Wireless
Your Brother machine's MAC address is not allowed. Confirm that the Brother machine's MAC Address is allowed in the filter. Wireless
Your wireless LAN access point/router is in stealth mode (not broadcasting the SSID).
  • Enter the correct SSID name or Network Key manually.
  • Check the SSID name or the Network Key in the instructions supplied with your wireless LAN access point/router and reconfigure the wireless network setup.
Wireless
For Windows
If your wireless connection has been interrupted, and you have checked and tried all of the above, we recommend using the Network Connection Repair Tool.

My Brother Machine Cannot Print or Scan over the Network

If you can no longer print or scan via the network, press WiFi Button/LED and Color Start simultaneously to restart the Wi-Fi.

Cause Action Interface
Your security software blocks your machine's access to the network. (The Network scanning feature does not work. )
  • Windows

    Configure the third-party Security/Firewall Software to allow Network scanning. To add port 54925 for Network scanning, type the information below:

    • In Name:

      Type any description, for example Brother NetScan.

    • In Port number:

      Type 54925.

      Type 137.

      Type 161.

    • In Protocol:

      UDP is selected.

    See the instruction manual that came with your third-party Security/Firewall Software or contact the software manufacturer.

  • Mac

    (Brother iPrint&Scan)

    In the Finder menu bar, click Go > Applications, and then double-click the Brother iPrint&Scan icon. The Brother iPrint&Scan window appears. Click the Select your Machine button, and then follow the on-screen instructions to reselect your network machine.

Wireless
Your security software blocks your machine's access to the network.

Some security software might block access without showing a security alert dialog box even after successful installation.

To allow access, see the instructions for your security software or ask the software manufacturer.

Wireless
Your Brother machine was not assigned an available IP address.

  • Confirm the IP address and the Subnet Mask.

    Verify that both the IP addresses and Subnet Masks of your computer and the Brother machine are correct and located on the same network.

    For more information about how to verify the IP address and the Subnet Mask, ask your network administrator.

  • Windows

    Confirm the IP address and the Subnet Mask using the Network Connection Repair Tool.

  • Mac

    Check your network devices using the ping command. For more information on how to confirm your network settings, see Related Information:Check Network Devices Using the Ping Command.

Wireless
The failed print job is still in your computer's print queue. (Windows)
  • If the failed print job is still in your computer's print queue, delete it.
  • Otherwise, double-click the printer icon in the following folder and cancel all documents:
    • Windows 10, Windows Server 2016, and Windows Server 2019

      Click image > Windows System > Control Panel. In the Hardware and Sound group, click View devices and printers.

    • Windows 8.1

      Move your mouse to the lower right corner of your desktop. When the menu bar appears, click Settings > Control Panel. In the Hardware and Sound group, click View devices and printers.

    • Windows Server 2012 R2

      Click Control Panel on the Start screen. In the Hardware group, click View devices and printers.

    • Windows Server 2012

      Move your mouse to the lower right corner of your desktop. When the menu bar appears, click Settings > Control Panel. In the Hardware group, click View devices and printers > Printers.

    • Windows 7 and Windows Server 2008 R2

      Click image(Start) > Devices and Printers.

    • Windows Server 2008

      Click Start > Control Panel > Printers.

Wireless
Your Brother machine is not connected to the wireless network.

Print the WLAN Report to check the error code on the printed report.

Wireless

If you have checked and tried all of the above, but your Brother machine still cannot print and scan, uninstall the drivers (Windows) and the Brother software and reinstall the latest version of both.

I Want to Check that My Network Devices are Working Correctly

Check Action Interface
Check that your Brother machine, access point/router, or network hub is turned on.
Check the following:
  • The power cord is connected correctly and the Brother machine is turned on.
  • The access point/router or hub is turned on and its link indicator is blinking.
  • All protective packaging has been removed from the machine.
  • The document cover and Jam Clear Cover are fully closed.
  • Paper is inserted correctly in the paper tray.
Wireless
Check that you can "ping" the Brother machine from your computer.

Ping the Brother machine from your computer using the IP address or the node name in the Windows command prompt or Mac Terminal application:

ping <ipaddress> or <nodename>.

  • Successful: Your Brother machine is working correctly and connected to the same network as your computer.
  • Unsuccessful: Your Brother machine is not connected to the same network as your computer.

Windows:

Ask your administrator about the IP address and the subnet mask, and then use the Network Connection Repair Tool.

Mac:

Confirm that the IP address and the Subnet Mask are set correctly.

Wireless
Check that your Brother machine is connected to the wireless network.

Print the WLAN Report to check the error code on the printed report.

Wireless

If you have checked and tried all of the above but you are still having problems, see the instructions supplied with your wireless LAN access point/router to find the SSID (Network Name) and the Network Key (Password) information and set them correctly.

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