Brother Wi-Fi Direct User manual

Wi-Fi Direct™ Guide
Version 0
TWN-ENG

i
Applicable models
This User’s Guide applies to the following models:
HL-3170CDW
MFC-9330CDW
Definitions of notes
We use the following icon throughout this User’s Guide:
Trademarks
The Brother logo is a registered trademark of Brother Industries, Ltd.
Brother is a trademark of Brother Industries, Ltd.
Wi-Fi Alliance and Wi-Fi Protected Access are registered trademarks of the Wi-Fi Alliance.
Wi-Fi Direct, Wi-Fi Protected Setup, WPA and WPA2 are trademarks of the Wi-Fi Alliance.
Android is a trademark of Google Inc.
Apple, Macintosh, iPhone, iPod touch, iPad and Safari are trademarks of Apple Inc., registered in the U.S.
and other countries.
AirPrint is a trademark of Apple Inc.
Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and other
countries.
Each company whose software title is mentioned in this manual has a Software License Agreement specific
to its proprietary programs.
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.
IMPORTANT NOTE
In this manual, the LCD messages of the HL-3170CDW are used unless specified otherwise.
Please go to the Brother Solutions Center at http://solutions.brother.com/ and click Manuals on your model
page to download the other manuals.
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
1 Introduction 1
Overview....................................................................................................................................................1
Benefits......................................................................................................................................................2
Hardware requirements .............................................................................................................................2
Supported operating systems..............................................................................................................2
Downloading and installing Brother iPrint&Scan .......................................................................................3
For Android™ Devices ........................................................................................................................3
For iOS Devices ..................................................................................................................................3
For Windows®Phone Devices ............................................................................................................3
2 Configuration methods 4
Step by step chart for Wi-Fi Direct network configuration..........................................................................4
Configuring your network using Wi-Fi Direct (For HL-3170CDW) .............................................................6
One push configuration using Wi-Fi Direct..........................................................................................6
One push configuration using WPS (Wi-Fi Protected Setup)..............................................................7
Configuration using the PIN Method of Wi-Fi Direct............................................................................8
Configuration using the PIN Method of WPS (Wi-Fi Protected Setup)................................................9
Manual configuration for a Wi-Fi Direct network................................................................................10
Configuring your network using Wi-Fi Direct (For MFC-9330CDW) ........................................................11
One push configuration using Wi-Fi Direct........................................................................................11
One push configuration using WPS (Wi-Fi Protected Setup)............................................................12
Configuration using the PIN Method of Wi-Fi Direct..........................................................................13
Configuration using the PIN Method of WPS (Wi-Fi Protected Setup)..............................................14
Manual configuration for a Wi-Fi Direct network................................................................................15
3 Troubleshooting 16
Overview..................................................................................................................................................16
Identifying the problem ......................................................................................................................16
4 Glossary 19
Wi-Fi Direct network terms ......................................................................................................................19
Group Owner (G/O)...........................................................................................................................19
Device Information.............................................................................................................................19
Status Information .............................................................................................................................19
I/F Enable ..........................................................................................................................................20
Network terms and concepts ...................................................................................................................20
Network terms ...................................................................................................................................20
Table of Contents

1
1
1
Overview 1
Wi-Fi Direct™ is one of the wireless configuration methods developed by the Wi-Fi Alliance®. It allows you to
configure a secured wireless network between your Brother machine and a mobile device, such as an
Android™ device, Windows®Phone device, iPhone, iPod touch or iPad, without using an access point. Wi-Fi
Direct supports wireless network configuration using the one push or PIN Method of WPS (Wi-Fi Protected
Setup™). You can also configure a wireless network by manually setting an SSID and password. Your
Brother machine's Wi-Fi Direct feature supports WPA2™ security with AES encryption.
1 Mobile device
2 Your Brother machine
NOTE
• Although the Brother machine can be used in both a wired and wireless network, only one connection
method can be used at a time. However, a wireless network connection and Wi-Fi Direct connection, or a
wired network connection and Wi-Fi Direct connection can be used at the same time.
• The Wi-Fi Direct supported device can become a Group Owner (G/O). When configuring the Wi-Fi Direct
network, the Group Owner (G/O) serves as an access point. See Group Owner (G/O) on page 19.
• When your Brother machine is the Group Owner (G/O), your Brother machine supports one to one wireless
communication using Wi-Fi Direct.
• Ad-hoc mode and Wi-Fi Direct cannot be used at the same time. Disable one function to enable the other.
If you want to use Wi-Fi Direct while you are using Ad-hoc mode, set Network I/F to Wired LAN or disable
Ad-hoc mode and connect your Brother machine to the access point.
Introduction 1
2
1

Introduction
2
1
Benefits 1
When you want to print from your mobile device or scan to your mobile device, Wi-Fi Direct helps you
configure a temporary wireless network easily, by using the one push or PIN method of WPS. For information
on printing from your mobile device or scanning to your mobile device, you can download the
Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from the Brother Solutions Center
(http://solutions.brother.com/).
Hardware requirements 1
Supported operating systems 1
You must have a Windows®Phone, or a device running either Android™ 1.6 or greater, or iOS 3.0 or greater.

Introduction
3
1
Downloading and installing Brother iPrint&Scan 1
Brother iPrint&Scan allows you to use features of your Brother machine directly from your mobile device,
without using a computer. Before you start configuring a wireless network using Wi-Fi Direct, we recommend
downloading Brother iPrint&Scan. Download the manual for Brother iPrint&Scan from the Brother Solutions
Center (http://solutions.brother.com/).
NOTE
If your machine does not have a scanner, you cannot use the scan functions of Brother iPrint&Scan.
For Android™ Devices 1
You can download and install Brother iPrint&Scan from Google Play (Android™ Market). To take advantage
of all the features supported by Brother iPrint&Scan, make sure you are using the latest version.
To download and install or uninstall Brother iPrint&Scan, see the user’s guide for your mobile device.
For iOS Devices 1
You can download and install Brother iPrint&Scan from the App Store. To take advantage of all the features
supported by Brother iPrint&Scan, make sure you are using the latest version.
To download and install or uninstall Brother iPrint&Scan, see the user’s guide for your mobile device. A link
to your mobile device’s user’s guide, which can be viewed on the Apple website, is a default link in Safari’s
Bookmarks folder.
For Windows®Phone Devices 1
You can download and install Brother iPrint&Scan from the Windows®Phone Marketplace. To take
advantage of all the features supported by Brother iPrint&Scan, make sure you are using the latest version.
To download and install or uninstall Brother iPrint&Scan, please refer to the user’s guide for your mobile
device.

4
2
2
Step by step chart for Wi-Fi Direct network configuration 2
The following instructions offer five methods for configuring your Brother machine in a wireless network
environment. Choose the method you prefer for your environment.
1If you cannot connect successfully when using Android™ 4.0, see PIN Method configuration using Wi-Fi Direct.
One push configuration using Wi-Fi Direct
For HL-3170CDW, see One push configuration using Wi-Fi Direct on page 6.
For MFC-9330CDW, see One push configuration using Wi-Fi Direct on page 11.
One push configuration using WPS (Wi-Fi Protected Setup)
For HL-3170CDW, see One push configuration using WPS (Wi-Fi Protected Setup) on page 7.
For MFC-9330CDW, see One push configuration using WPS (Wi-Fi Protected Setup) on page 12.
Configuration methods 2
Check your mobile device for configuration.
Does your mobile device support Wi-Fi Direct?
Yes No
Does your mobile device support one push
configuration for Wi-Fi Direct?
Does your mobile device support WPS (Wi-Fi Protected
Setup) ?
Yes No
Yes
No
See One push
configuration using
Wi-Fi Direct 1.
See PIN Method
configuration using Wi-Fi
Direct.
See Manual wireless
configuration.
Does your mobile device support one push
configuration for WPS (Wi-Fi Protected Setup) ?
Yes No
See One push
configuration using WPS
(Wi-Fi Protected Setup).
See PIN Method
configuration using WPS
(Wi-Fi Protected Setup).

Configuration methods
5
2
PIN Method configuration using Wi-Fi Direct
For HL-3170CDW, see Configuration using the PIN Method of Wi-Fi Direct on page 8.
For MFC-9330CDW, see Configuration using the PIN Method of Wi-Fi Direct on page 13.
PIN Method configuration using WPS (Wi-Fi Protected Setup)
For HL-3170CDW, see Configuration using the PIN Method of WPS (Wi-Fi Protected Setup) on page 9.
For MFC-9330CDW, see Configuration using the PIN Method of WPS (Wi-Fi Protected Setup)
on page 14.
Manual wireless configuration
For HL-3170CDW, see Manual configuration for a Wi-Fi Direct network on page 10.
For MFC-9330CDW, see Manual configuration for a Wi-Fi Direct network on page 15.
NOTE
To use the Brother iPrint&Scan functionality in a Wi-Fi Direct network configured by One push
configuration using Wi-Fi Direct or by PIN Method configuration using Wi-Fi Direct, the device you use to
configure Wi-Fi Direct must be running Android™ 4.0 or greater.

Configuration methods
6
2
Configuring your network using Wi-Fi Direct
(For HL-3170CDW) 2
The Wi-Fi Direct network settings are configured from the control panel of the machine.
One push configuration using Wi-Fi Direct 2
If your mobile device supports Wi-Fi Direct, you can configure a Wi-Fi Direct network by following these
instructions.
aPress aor bto choose Network.
Press OK.
bPress aor bto choose Wi-Fi Direct.
Press OK.
cPress aor bto choose Push Button.
Press OK.
dWhen Wi-Fi Direct On? is displayed, press ato accept.
To cancel, press b.
eActivate Wi-Fi Direct on your mobile device (see your mobile device's user's guide for instructions) when
Activate Wi-Fi Direct on other device and press OK. is displayed.
Press OK on your machine. This will start the Wi-Fi Direct setup.
To cancel, press Back.
fDo one of the following:
When your Brother machine is the G/O (Group Owner), connect your mobile device to the machine
directly.
When your Brother machine is not the G/O (Group Owner), it will display available device names with
which to configure a Wi-Fi Direct network. Press aor bto choose the mobile device you want to
connect to and press OK. You can re-search for available devices by pressing aor bto display
Rescan and press OK.
gIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For information on printing from your mobile device,
you can download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from the
Brother Solutions Center (http://solutions.brother.com/).
If the connection failed, see Troubleshooting on page 16.

Configuration methods
7
2
One push configuration using WPS (Wi-Fi Protected Setup) 2
If your mobile device supports WPS (PBC; Push Button Configuration), you can configure a Wi-Fi Direct
network by following these instructions.
aPress aor bto choose Network.
Press OK.
bPress aor bto choose Wi-Fi Direct.
Press OK.
cPress aor bto choose Group Owner.
Press OK.
dPress aor bto choose On.
Press OK.
ePress aor bto choose Push Button.
Press OK.
fWhen Wi-Fi Direct On? is displayed, press ato accept.
To cancel, press b.
gWhen Activate Wi-Fi Direct on other device and press OK. is displayed, activate your
mobile device's WPS one push configuration method (see your mobile device's user's guide for
instructions) and then press OK on your machine. This will start the Wi-Fi Direct setup.
To cancel, press Back.
hIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For information on printing from your mobile device,
you can download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from the
Brother Solutions Center (http://solutions.brother.com/).
If the connection failed, see Troubleshooting on page 16.

Configuration methods
8
2
Configuration using the PIN Method of Wi-Fi Direct 2
If your mobile device supports the PIN Method of Wi-Fi Direct, you can configure a Wi-Fi Direct network by
following these instructions.
aPress aor bto choose Network.
Press OK.
bPress aor bto choose Wi-Fi Direct.
Press OK.
cPress aor bto choose PIN Code.
Press OK.
dWhen Wi-Fi Direct On? is displayed, press ato accept.
To cancel, press b.
eActivate Wi-Fi Direct on your mobile device (see your mobile device's user's guide for instructions) when
Activate Wi-Fi Direct on other device and press OK. is displayed. Press OK on your
machine. This will start the Wi-Fi Direct setup.
To cancel, press Back.
fDo one of the following:
When your Brother machine is the G/O (Group Owner), it will wait for a connection request from your
mobile device. When Input PIN Code appears, input the PIN displayed on your mobile device in
to the machine. (See Quick Setup Guide: Entering Text for Wireless Settings.)
Press OK. Follow the instructions and go to step h.
If the PIN is displayed on your Brother machine, input the PIN to your mobile device.
When your Brother machine is not the G/O (Group Owner), it will display available device names with
which to configure a Wi-Fi Direct network. Press aor bto choose the mobile device you want to
connect to and press OK. You can re-search for available devices by pressing aor bto display
Rescan and press OK. Go to step g.
gDo one of the following:
Press ato display the PIN on your machine and input the PIN to your mobile device. Follow the
instructions and then go to step h.
Press bto input a PIN shown by your mobile device to the machine. (See Quick Setup Guide: Entering
Text for Wireless Settings.)
Press OK. Follow the instructions and then go to step h.
If your mobile device does not display a PIN, press Cancel on your Brother machine. Go back to
step aand try again.
hIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For information on printing from your mobile device,
you can download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from the
Brother Solutions Center (http://solutions.brother.com/).
If the connection failed, see Troubleshooting on page 16.

Configuration methods
9
2
Configuration using the PIN Method of WPS (Wi-Fi Protected Setup) 2
If your mobile device supports the PIN Method of WPS (Wi-Fi Protected Setup), you can configure a Wi-Fi
Direct network by following these instructions.
aPress aor bto choose Network.
Press OK.
bPress aor bto choose Wi-Fi Direct.
Press OK.
cPress aor bto choose Group Owner.
Press OK.
dPress aor bto choose On.
Press OK.
ePress aor bto choose PIN Code.
Press OK.
fWhen Wi-Fi Direct On? is displayed, press ato accept.
To cancel, press b.
gWhen Activate Wi-Fi Direct on other device and press OK. is displayed, activate your
mobile device's WPS PIN configuration method (see your mobile device's user's guide for instructions)
and then press OK on your machine. This will start the Wi-Fi Direct setup.
To cancel, press Back.
hThe machine will wait for a connection request from your mobile device. When Input PIN Code
appears, input the PIN displayed on your mobile device to the machine. (See Quick Setup Guide:
Entering Text for Wireless Settings.)
Press OK.
iIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For information on printing from your mobile device,
you can download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from the
Brother Solutions Center (http://solutions.brother.com/).
If the connection failed, see Troubleshooting on page 16.

Configuration methods
10
2
Manual configuration for a Wi-Fi Direct network 2
If your mobile device does not support Wi-Fi Direct or WPS, you must configure a Wi-Fi Direct network
manually.
aPress aor bto choose Network.
Press OK.
bPress aor bto choose Wi-Fi Direct.
Press OK.
cPress aor bto choose Manual.
Press OK.
dWhen Wi-Fi Direct On? is displayed, press ato accept.
To cancel, press b.
eThe machine will show the SSID name and Password for two minutes. Go to the wireless network
settings page of your mobile device and input the SSID name and password.
fIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For information on printing from your mobile device,
you can download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from the
Brother Solutions Center (http://solutions.brother.com/).
If the connection failed, see Troubleshooting on page 16.

Configuration methods
11
2
Configuring your network using Wi-Fi Direct
(For MFC-9330CDW) 2
The Wi-Fi Direct network settings are configured from the control panel of the machine.
One push configuration using Wi-Fi Direct 2
If your mobile device supports Wi-Fi Direct, you can configure a Wi-Fi Direct network by following these
instructions.
aPress .
bPress Wi-Fi Direct.
cSwipe up or down, or press aor bto display Push Button.
Press Push Button.
dWhen Wi-Fi Direct On? is displayed, press On to accept.
To cancel, press Off.
eActivate Wi-Fi Direct on your mobile device (see your mobile device's user's guide for instructions) when
Activate Wi-Fi Direct on other device. Then Press [OK]. is displayed.
Press OK on your machine. This will start the Wi-Fi Direct setup.
To cancel, press .
fDo one of the following:
When your Brother machine is the G/O (Group Owner), connect your mobile device to the machine
directly.
When your Brother machine is not the G/O (Group Owner), it will display available device names with
which to configure a Wi-Fi Direct network. Choose the mobile device you want to connect to and press
OK. You can re-search for available devices by pressing Rescan.
gIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For details on printing from or scanning to your
mobile device, download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from
the Brother Solutions Center (http://solutions.brother.com/).
If the connection fails, see Troubleshooting on page 16.

Configuration methods
12
2
One push configuration using WPS (Wi-Fi Protected Setup) 2
If your mobile device supports WPS (PBC; Push Button Configuration), you can configure a Wi-Fi Direct
network by following these instructions.
aPress .
bPress Wi-Fi Direct.
cSwipe up or down, or press aor bto display Group Owner.
Press Group Owner and then press On.
dSwipe up or down, or press aor bto display Push Button.
Press Push Button.
eWhen Wi-Fi Direct On? is displayed, press On to accept.
To cancel, press Off.
fWhen Activate Wi-Fi Direct on other device. Then Press [OK]. is displayed, activate
your mobile device's WPS one push configuration method (see your mobile device's user's guide for
instructions) and then press OK on your Brother machine. This will start the Wi-Fi Direct setup.
To cancel, press .
gIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For details on printing from or scanning to your
mobile device, download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from
the Brother Solutions Center (http://solutions.brother.com/).
If the connection fails, see Troubleshooting on page 16.

Configuration methods
13
2
Configuration using the PIN Method of Wi-Fi Direct 2
If your mobile device supports the PIN Method of Wi-Fi Direct, you can configure a Wi-Fi Direct network by
following these instructions.
aPress .
bPress Wi-Fi Direct.
cSwipe up or down, or press aor bto display PIN Code.
Press PIN Code.
dWhen Wi-Fi Direct On? is displayed, press On to accept.
To cancel, press Off.
eActivate Wi-Fi Direct on your mobile device (see your mobile device's user's guide for instructions) when
Activate Wi-Fi Direct on other device. Then Press [OK]. is displayed. Press OK on
your machine. This will start the Wi-Fi Direct setup.
To cancel, press .
fDo one of the following:
When your Brother machine is the G/O (Group Owner), it will wait for a connection request from your
mobile device. When PIN Code appears, type the PIN displayed on your mobile device in to the
machine. Press OK. Follow the instructions and go to step h.
If the PIN is displayed on your Brother machine, input the PIN to your mobile device.
When your Brother machine is not the G/O (Group Owner), it will display available device names with
which to configure a Wi-Fi Direct network. Choose a mobile device you want to connect to and press
OK. You can re-search for available devices by pressing Rescan. Go to step g.
gDo one of the following:
Press Display PIN Code to display the PIN on your machine and input the PIN to your mobile
device. Follow the instructions and then go to step h.
Press Input PIN Code to input a PIN shown by your mobile device to the machine and then
press OK. Follow the instructions and then go to step h.
If your mobile device does not display a PIN, press on your Brother machine. Go back to step a
and try again.
hIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For details on printing from or scanning to your
mobile device, download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from
the Brother Solutions Center (http://solutions.brother.com/).
If the connection fails, see Troubleshooting on page 16.

Configuration methods
14
2
Configuration using the PIN Method of WPS (Wi-Fi Protected Setup) 2
If your mobile device supports the PIN Method of WPS (Wi-Fi Protected Setup), you can configure a Wi-Fi
Direct network by following these instructions.
aPress .
bPress Wi-Fi Direct.
cSwipe up or down, or press aor bto display Group Owner.
Press Group Owner and then press On.
dSwipe up or down, or press aor bto display PIN Code.
Press PIN Code.
eWhen Wi-Fi Direct On? is displayed, press On to accept.
To cancel, press Off.
fWhen Activate Wi-Fi Direct on other device. Then Press [OK]. is displayed, activate
your mobile device's WPS PIN configuration method (see your mobile device's user's guide for
instructions) and then press OK on your Brother machine. This will start the Wi-Fi Direct setup.
To cancel, press .
gThe machine will wait for a connection request from your mobile device. When PIN Code appears, input
the PIN displayed on your mobile device to the machine.
Press OK.
hIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For details on printing from or scanning to your
mobile device, download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from
the Brother Solutions Center (http://solutions.brother.com/).
If the connection fails, see Troubleshooting on page 16.

Configuration methods
15
2
Manual configuration for a Wi-Fi Direct network 2
If your mobile device does not support Wi-Fi Direct or WPS, you must configure a Wi-Fi Direct network
manually.
aPress .
bPress Wi-Fi Direct.
cSwipe up or down, or press aor bto display Manual.
Press Manual.
dWhen Wi-Fi Direct On? is displayed, press On to accept.
To cancel, press Off.
eThe machine will show the SSID name and Password for two minutes. Go to the wireless network
settings page of your mobile device and input the SSID name and password.
fIf your mobile device connects successfully, the machine shows Connected.
You have completed the Wi-Fi Direct network setup. For details on printing from or scanning to your
mobile device, download the Mobile Print/Scan Guide for Brother iPrint&Scan or the AirPrint Guide from
the Brother Solutions Center (http://solutions.brother.com/).
If the connection fails, see Troubleshooting on page 16.

16
3
3
Overview 3
This section explains how to resolve typical network problems you may encounter when using the Brother
machine. If, after reading this chapter, you are unable to resolve your problem, visit the Brother Solutions
Center at (http://solutions.brother.com/).
For details, go to the Brother Solutions Center at (http://solutions.brother.com/) and click Manuals on your
model page to download other manuals.
Identifying the problem 3
Make sure that the following items are configured before reading this chapter.
Go to the page for your solution from the lists below 3
Error messages when using the Wi-Fi Direct control panel menu.
See Error messages when configuring Wi-Fi Direct from the control panel menu on page 17
I cannot complete the Wi-Fi Direct network setup configuration.
See I cannot complete the Wi-Fi Direct network setup configuration. on page 18
I want to check my network devices are working correctly.
See I want to check my network devices are working correctly. on page 18
Troubleshooting 3
First check the following:
The power cord is connected correctly and the Brother machine is turned on.
All protective packaging has been removed from the machine.
The toner cartridges and drum unit are installed correctly.
The top and back covers are fully closed.
Paper is inserted correctly in the paper tray.

Troubleshooting
17
3
Error messages when configuring Wi-Fi Direct from the control panel menu
Error Message Cause Action
(For HL-3170CDW)
Connection Fail
(For MFC-9330CDW)
Connection Failed
The Brother machine and your mobile
device cannot communicate during the
configuration.
Move the mobile device closer to your
Brother machine.
Move your Brother machine and the
mobile device to an obstruction-free
area.
If you are using the PIN Method of WPS,
make sure you have input the correct
PIN code.
(For HL-3170CDW)
Connection Error
(For MFC-9330CDW)
Connection Error
Other devices are trying to connect to the
Wi-Fi Direct network at the same time.
Make sure there are no other devices trying
to connect to the Wi-Fi Direct network and
then try to configure the Wi-Fi Direct
settings again.
(For HL-3170CDW)
No Device
(For MFC-9330CDW)
No Device
The Brother machine cannot find your
mobile device.
Make sure your machine and mobile
device are in the Wi-Fi Direct mode.
Move the mobile device closer to your
Brother machine.
Move your Brother machine and the
mobile device to an obstruction-free
area.
If you are manually configuring the Wi-Fi
Direct network, make sure you have
entered the correct password.
If your mobile device has a configuration
page for how to obtain an IP address,
make sure the IP address of your mobile
device has been configured via DHCP.
(For HL-3170CDW)
Cannot Connect A
device is already
connected.
(For MFC-9330CDW)
A device is
already
connected. Press
[OK].
Another mobile device is already connected
to the Wi-Fi Direct network when the
Brother machine is the G/O (Group Owner).
After the current connection between your
Brother machine and another mobile device
has shut down, try and configure the Wi-Fi
Direct settings again. You can confirm the
connection status by printing the Network
Configuration Report uu Network User's
Guide: Printing the Network Configuration
Report.