Brother TD-2125N User manual

TD-2125N
TD-2135N
TD-2125NWB
TD-2135NWB
This Network User's Guide provides useful information to configure
wired and wireless network settings using your Brother printer. You can
also find supported protocol information and detailed troubleshooting
tips.
To download the latest manual, software, and drivers and see FAQs
and Troubleshooting tips, visit the Brother support website at
support.brother.com.
Version 01
ENG
Network User’s Guide

i
Applicable Models
This User’s Guide applies to the following models:
TD-2125N
TD-2135N
TD-2125NWB
TD-2135NWB
Definitions of Notes
We use the following icon throughout this User’s Guide:
Compilation and publication notice
Under the supervision of Brother Industries, Ltd., this manual has been compiled and published, covering the
latest product’s descriptions and specifications.
The contents of this manual and the specifications of this product are subject to change without notice.
Brother reserves the right to make changes without notice in the specifications and materials contained
herein and shall not be responsible for any damages (including consequential) caused by reliance on the
materials presented, including but not limited to typographical and other errors relating to the publication.
© 2022 Brother industries, Ltd. All rights reserved.
NOTE Notes tell you how you should respond to a situation that may arise or give tips
about how the operation works with other features.

ii
IMPORTANT NOTE
This product is approved for use in the country of purchase only. Do not use this product outside the country
of purchase as it may violate the wireless telecommunication and power regulations of that country.
Not all models are available in all countries.
Trademarks
Safari is a trademark of Apple Inc., registered in the United States and other countries.
Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.
Wi-Fi®, Wi-Fi Alliance®and Wi-Fi Protected Access®are registered trademarks of Wi-Fi Alliance®.
WPA™, WPA2™, WPA3™, and Wi-Fi Protected Setup™ are trademarks of Wi-Fi Alliance®.
Android and Google Chrome are trademarks of Google LLC.
The Bluetooth®word mark is a registered trademark owned by Bluetooth SIG, Inc. and any use of such marks
by Brother Industries, Ltd. is under license. Other trademarks and trade names are those of their respective
owners.
Any trade names and product names of companies appearing on Brother products, related documents and
any other materials are all trademarks or registered trademarks of those respective companies.

iii
Table of Contents
1 Introduction 1
Network Features ......................................................................................................................................1
2 Changing Your Printer’s Network Settings 2
Change your printer’s network settings: IP address, Subnet mask. and Gateway ....................................2
Using the BRAdmin Light utility ...........................................................................................................2
Other Management Utilities .......................................................................................................................5
Using Web Based Management (web browser) ..................................................................................5
Using BRAdmin Professional (Windows) ............................................................................................5
3 Configuring Your Machine for a Wireless Network
(TD-2125NWB/TD-2135NWB only) 6
Overview....................................................................................................................................................6
Confirm your network environment............................................................................................................7
Connected to a computer with a wireless router on the network (Infrastructure mode) ......................7
Wireless configuration temporarily using a USB cable (Recommended for Windows users)....................8
One-push configuration using Wi-Fi Protected Setup™ ............................................................................9
4 Printing the Printer Setup Information 10
Print the Printer Setup Information ..........................................................................................................10
5 Web Based Management 12
Change Printer Settings Using Web Based Management.......................................................................12
Set or Change a Login Password for Web Based Management .............................................................13
6 Troubleshooting 14
Overview..................................................................................................................................................14
A Appendix A 18
Supported protocols and security features ..............................................................................................18
B Appendix B 19
Types of network connections and protocols...........................................................................................19
Types of network connections ...........................................................................................................19
Protocols............................................................................................................................................21
Configure your printer for a network ........................................................................................................23
IP addresses, subnet masks and gateways ......................................................................................23
Wireless network terms and concepts .....................................................................................................25
Specifying your network ....................................................................................................................25
Security terms....................................................................................................................................25

iv
Other ways to set the IP address (for advanced users and administrators) ............................................30
Using DHCP to configure the IP address ..........................................................................................30
Using RARP to configure the IP address ..........................................................................................30
Using BOOTP to configure the IP address........................................................................................31
Using APIPA to configure the IP address..........................................................................................31
Using ARP to configure the IP address .............................................................................................32

1
1
1
Network Features 1
Your Brother printer can be shared on a 10/100 Mbps wired 1or IEEE 802.11b/g/n wireless network 2using
the internal network print server. The print server supports various functions and methods of connection on
a network supporting TCP/IP, depending on the operating system you are running. The following table shows
what network features and connections are supported by each operating system.
NOTE
Although your Brother printer can be used on both a wired 1and wireless network, only one connection
method can be used at a time.
1A wired network connection is available on the TD-2125N/2135N/2125NWB/2135MWB.
2A wireless network connection is available on the TD-2125NWB/2135NWB.
1BRAdmin Professional is available to download from support.brother.com.
Introduction 1
Operating Systems Windows 11
Windows 10
Windows 8.1
Windows Server 2012, 2012 R2,
2016, 2019, 2022
BRAdmin Light
See page 2.
rr
BRAdmin Professional 1
See page 5.
rr
Web Based Management rr
Status Monitor rr
Driver Deployment Wizard rr
Printer Setting Tool rr

2
2
2
Change your printer’s network settings:
IP address, Subnet mask. and Gateway 2
Using the BRAdmin Light utility 2
The BRAdmin Light utility is designed for the initial setup of Brother network-connectable devices. It can also
search for Brother products in a TCP/IP environment, show each product's status, and configure basic
network settings.
Installing BRAdmin Light 2
Windows
aVisit the Brother support website at support.brother.com and download the installer for the software
and documents.
bDouble-click the downloaded file and follow the on-screen instructions to proceed with the installation.
In the dialog box for selecting which items to install, select BRAdmin Light.
NOTE
• For more advanced printer management, download the latest version of Brother BRAdmin Professional
from your model's Downloads page at support.brother.com.
• If using a firewall, anti-spyware, or antivirus software, temporarily disable them. When you are sure that
you can print, enable them again.
• The node name appears in the current BRAdmin Light window. The default node name of the print server
in the printer is “BRNxxxxxxxxxxxx” or “BRWxxxxxxxxxxxx”. (“xxxxxxxxxxxx” is based on your printer’s
MAC Address/Ethernet Address.)
Changing Your Printer’s Network Settings2

Changing Your Printer’s Network Settings
3
2
Setting the IP address, Subnet Mask, and Gateway using BRAdmin Light 2
aStart the BRAdmin Light utility.
For Windows 10/Windows 11:
Click [Start] - [Brother] - [BRAdmin Light] - [BRAdmin Light].
For Windows 8.1:
Click [Start]/[Apps] - [BRAdmin Light].
bBRAdmin Light will search for new devices automatically.
cDouble-click the unconfigured device.
2
NOTE
• If you do not use a DHCP/BOOTP/RARP server, the device will appear as [Unconfigured] in the
BRAdmin Light screen.
• You can find the node name and MAC Address by printing the Printer Settings. (See Printing the Printer
Setup Information on page 10.)

Changing Your Printer’s Network Settings
4
2
dSelect “STATIC” as the boot method. Enter the IP address, subnet mask and gateway (if needed) of your
print server.
2
eClick [OK].
fOnce your IP address has been saved, you will see the Brother print server on the device list.

Changing Your Printer’s Network Settings
5
2
Other Management Utilities 2
You can use the following management utilities in addition to BRAdmin Light utility to manage your printer
and change your network settings.
Using Web Based Management (web browser) 2
Use a standard web browser to change your print server settings with Hyper Text Transfer Protocol (HTTP).
For more information, see Change Printer Settings Using Web Based Management on page 12.
Using BRAdmin Professional (Windows) 2
BRAdmin Professional can search for Brother products on your network and show the status of each device.
You can configure network settings and device settings, and update device firmware from a Windows
computer on your Local Area Network (LAN). BRAdmin Professional can also log activity of Brother devices
on your network and export the log data in HTML, CSV, TXT, or SQL format.
For more information and downloads, visit us at support.brother.com.
NOTE
• Use the latest version of the BRAdmin Professional software, which is available on your model's
Downloads page at support.brother.com.
• If you are using a firewall, anti-spyware, or antivirus software, temporarily disable them. Once you are sure
that you can print, enable them again.
• The node name appears in the current BRAdmin Professional window. The default node name is
“BRNxxxxxxxxxxxx” or “BRWxxxxxxxxxxxx”. (“xxxxxxxxxxxx” is based on your printer’s
MAC Address/Ethernet Address.)

6
3
3
Overview 3
To connect your machine to your wireless network, follow the steps in your model's User’s Guide.
This chapter provides more details on how to configure your wireless network settings. For information on
TCP/IP settings, see Change your printer’s network settings: IP address, Subnet mask. and Gateway
on page 2.
NOTE
• Make sure there are minimal obstructions between the wireless router and the printer. Large objects, walls,
and other electronic devices can affect the transmission speed of the print data.
• Use a USB flash drive for the fastest throughput speed for all types of documents and applications.
• Make sure you know your SSID and Network Key before configuring wireless settings.
• Although your Brother machine can be used on both a wired and wireless network, only one connection
method can be used at a time.
Configuring Your Machine for a Wireless
Network (TD-2125NWB/TD-2135NWB only)
3

Configuring Your Machine for a Wireless Network (TD-2125NWB/TD-2135NWB only)
7
3
Confirm your network environment 3
Connected to a computer with a wireless router on the network
(Infrastructure mode) 3
1 Wireless router
2 Wireless network printer (your printer)
3 Wireless-capable computer connected to the wireless router
4 Wired computer (not wireless-capable) connected to the wireless router with an Ethernet cable
5 Smartphone
Installation method 3
The following instructions will detail the methods for installing your Brother printer in a wireless network
environment. Choose the method you prefer for your environment.
Wireless configuration temporarily using a USB cable (Recommended for Windows users)
See Wireless configuration temporarily using a USB cable (Recommended for Windows users) on page 8.
One push wireless configuration using WPS
See One-push configuration using Wi-Fi Protected Setup™ on page 9.
1
4
3
2
5

Configuring Your Machine for a Wireless Network (TD-2125NWB/TD-2135NWB only)
8
3
Wireless configuration temporarily using a USB cable
(Recommended for Windows users) 3
It is recommended that you use a PC wirelessly connected to your network for this method.
You can remotely configure the printer from the computer on the network using a USB cable (A) 1.
1You can configure the wireless settings of the printer using a USB cable temporarily connected to a wired or wireless computer.
See the installation procedure in the User’s Guide.
A

Configuring Your Machine for a Wireless Network (TD-2125NWB/TD-2135NWB only)
9
3
One-push configuration using Wi-Fi Protected Setup™ 3
You can use WPS to configure your wireless network settings easily if your wireless router (A) supports
Wi-Fi Protected Setup™ (PBC 1).
1Push Button Configuration
See the installation procedure in your model's User’s Guide.
A

10
4
4
Print the Printer Setup Information 4
The Printer Settings Page is a report listing the network settings. You can print the Printer Settings Page using
your printer's (Print) button. The following details and items can be printed:
• Program version
• Printer usage history
• Missing dot test pattern
• List of transferred data
• Communication settings
NOTE
• You can use the utility to set, in advance, which items will be printed. See Printing the printer setup
information in your model's User’s Guide.
• The node name appears in the Printer Settings Page. The default node name is “BRNxxxxxxxxxxxx” or
“BRWxxxxxxxxxxxx”. (“xxxxxxxxxxxx” is based on your printer’s MAC Address/Ethernet Address.)
aLoad a roll of media and confirm that the Media Roll compartment top cover is closed. We recommend
using the 2.25" (57 mm) or wider receipt paper.
bTurn on the printer.
cPress and hold the (Print) button for more than one second.
Printing the Printer Setup Information 4

Printing the Printer Setup Information
11
4
NOTE
To reset the network settings and set the automatic private IP address (APIPA), follow the procedure below:
• To reset network settings and turn APIPA ON
aPress and hold the (Power) button to turn the printer off.
bPress and hold the (Feed) button and the (Power) button until the POWER indicator turns
orange and the STATUS indicator flashes green.
cWhile holding down the (Power) button, press the (Feed) button 2 times.
dRelease the (Power) button.
All the network settings will be reset.
• To reset network settings and turn APIPA OFF
aPress and hold the (Power) button to turn the printer off.
bPress and hold the (Feed) button and the (Power) button until the POWER indicator lights in
orange and the STATUS indicator flashes green.
cWhile holding down the (Power) button, press the (Feed) button 4 times.
dRelease the (Power) button.
All the network settings will be reset.

12
5
5
Change Printer Settings Using Web Based Management 5
You can use a standard web browser to change your printer's settings using Hyper Text Transfer Protocol
(HTTP) or Hyper Text Transfer Protocol over Secure Socket Layer (HTTPS).
When using Web Based Management, the following operations are available:
Viewing your printer status information
Changing network settings
Viewing your printer's software version information
Changing network and printer configuration details
NOTE
• We recommend Microsoft Edge for Windows, Google Chrome™ for Android™, and Google Chrome™/
Safari for iOS. Make sure that JavaScript and Cookies are always enabled in whichever browser you use.
• The default login password to manage printer settings is located on your printer and marked “Pwd”.
We recommend you change it to protect your printer from unauthorized access.
To use Web Based Management, your network must use TCP/IP, and the printer and computer must have
valid IP addresses.
aStart your web browser.
bType “https://printer's IP address” in your browser's address bar.
For example:
https://192.168.1.2
NOTE
If you are using a Domain Name System or enable a NetBIOS name, you can type another name, such
as “SharedPrinter” instead of the IP address.
For example:
https://SharedPrinter
If you enable a NetBIOS name, you can also use the node name.
For example:
https://brnxxxxxxxxxxxx
cIf required, type the password in the Login field, and then click Login.
dChange the printer settings as needed.
Every time you access Web Based Management, type the password in the Login field, and then click Login.
After configuring the settings, click Logout.
Web Based Management 5

Web Based Management
13
5
Set or Change a Login Password for Web Based Management5
The default login password to manage printer settings is located on your printer and marked “Pwd”.
We recommend immediately changing the default password to protect your printer from unauthorised access.
aStart your web browser.
bType “https://printer's IP address” in your browser's address bar.
For example:
https://192.168.1.2
NOTE
If you are using a Domain Name System or enable a NetBIOS name, you can type another name, such
as “SharedPrinter” instead of the IP address.
For example:
https://SharedPrinter
If you enable a NetBIOS name, you can also use the node name.
For example:
https://brnxxxxxxxxxxxx
cDo one of the following:
• If you have previously set your own password, type it, and then click Login.
• If you have not previously set your own password, type the default login password, and then
click Login.
dGo to the navigation menu, and then click Administrator > Login Password.
NOTE
Start from if the navigation menu is not shown on the left side of the screen.
eFollowing the on-screen Login Password guidelines, type your new password in the
Enter New Password field.
fRetype the new password in the Confirm New Password field.
gClick Submit.
NOTE
You can also change the lockout settings in the Login Password menu.

14
6
6
Overview 6
This chapter explains how to resolve typical network problems you may encounter when using your Brother
printer. If, after reading this chapter, you are unable to resolve your problem, please visit the Brother support
website for further support at: support.brother.com.
Troubleshooting 6
First check the following:
The power cord is connected correctly and the Brother printer is turned on.
The wireless router is turned on and the link LED is flashing.
All protective packaging has been removed from the machine.
The front and top covers are fully closed.
The media roll is inserted correctly in the roll compartment.
(For wired networks) A network cable is securely connected to the Brother printer and the router or hub.
(For wireless networks) The network cable is not connected to the printer.
I cannot complete the wireless network setup configuration.
Question Interface Solution
Are your security settings
(SSID/Network Key)
correct?
wireless Confirm your security settings and network.
• The manufacturer's name or model number of the wireless router may
be the default security settings.
• See the instructions supplied with your wireless router for information
on how to find the security settings.
• Ask the manufacturer of your wireless router or ask your Internet
provider or network administrator.
Is your wireless router in
stealth mode? (not
broadcasting the SSID)
wireless Enter the correct SSID (Network Name) name during the installation or
when using “Communication settings” in the Printer Setting Tool.
Check the SSID (Network Name) in the instructions supplied with your
wireless router and reconfigure the wireless network setup.
I have checked and tried all
of the above, but still cannot
complete the wireless
configuration. Is there
anything else I can do?
wireless Use “Communication settings” in the Printer Setting Tool.
Is your Brother printer
correctly connected to the
wireless router?
wireless If the STATUS indicator is lit, the network is correctly connected. If the
STATUS indicator is flashing, the network is not connected correctly, and
the wireless network setup must be reconfigured.

Troubleshooting
15
6
The Brother printer is not found on the network during the printer installation.
Question Interface Solution
Are you using security
software?
wired/
wireless
Confirm your settings in the installer dialog box.
Allow access when your security software alert message appears during the
printer installation. See I'm using security software. in this guide.
Is your Brother printer
placed too far from the
wireless router?
wireless Place your Brother printer within 3.3 ft (1 m) of your wireless router when you
configure the wireless network settings.
Are there any obstructions
(walls or furniture, for
example) between your
printer and the wireless
router?
wireless Move your Brother printer to an obstruction-free area, or closer to the
wireless router.
Is there a wireless
computer, Bluetooth®
supported device,
microwave oven, or digital
cordless phone near the
Brother printer or the
wireless router?
wireless Move all the devices away from your Brother printer or wireless router.