Mercusys MW300D User manual

User Guide
300Mbps Wireless N ADSL2+ Modem Router
MW300D
REV1.0.0
1910080047

COPYRIGHT & TRADEMARK
Specifications are subject to change without notice. is a
registered trademark of MERCUSYS TECHNOLOGIES CO., LTD. Other brands and product
names are trademarks or registered trademarks of their respective holders.
No part of the specifications may be reproduced in any form or by any means or used to make
any derivative such as translation, transformation, or adaptation without permission from
MERCUSYS TECHNOLOGIES CO., LIMITED. Copyright © 2019 MERCUSYS TECHNOLOGIES
CO., LIMITED. All rights reserved.
http://www.mercusys.com

CE Mark Warning
This is a class B product. In a domestic environment, this product may cause radio interference,
in which case the user may be required to take adequate measures.
OPERATING FREQUENCY(the maximum transmitted power)
2400 MHz -2483.5 MHz(20dBm)
EU declaration of conformity
Mercusys hereby declares that the device is in compliance with the essential requirements and
other relevant provisions of directives 2014/53/EU, 2009/125/EC, 2011/65/EU and
(EU)2015/863.
The original EU declaration of conformity may be found at http://www.mercusys.com/en/ce
RF Exposure Information
This device meets the EU requirements (2014/53/EU Article 3.1a) on the limitation of exposure
of the general public to electromagnetic fields by way of health protection.
The device complies with RF specifications when the device used at 20 cm from your body.
Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам
нормативних документів та вимогам, що передбачені чинними законодавчими актами
України.
Safety Information
•Keep the device away from water, fire, humidity or hot environments.
•Do not attempt to disassemble, repair, or modify the device.
•Do not use damaged charger or USB cable to charge the device.
•Do not use any other chargers than those recommended.
•Do not use the device where wireless devices are not allowed.
•Adapter shall be installed near the equipment and shall be easily accessible.

•Use only power supplies which are provided by manufacturer and in the original
packing of this product. If you have any questions, please don't hesitate to contact us.
Please read and follow the above safety information when operating the device. We cannot
guarantee that no accidents or damage will occur due to improper use of the device. Please
use this product with care and operate at your own risk.
NCC Notice
注意！
依據低功率電波輻射性電機管理辦法
第十二條經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻率、
加大功率或變更原設計之特性或功能。
第十四條低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即
停用，並改善至無干擾時方得繼續使用。前項合法通信，指依電信規定作業之無線電信。低功率射
頻電機需忍受合法通信或工業、科學以及醫療用電波輻射性電機設備之干擾。
BSMI Notice
安全諮詢及注意事項
•請使用原裝電源供應器或只能按照本產品注明的電源類型使用本產品。
•清潔本產品之前請先拔掉電源線。請勿使用液體、噴霧清潔劑或濕布進行清潔。
•注意防潮，請勿將水或其他液體潑灑到本產品上。
•插槽與開口供通風使用，以確保本產品的操作可靠並防止過熱，請勿堵塞或覆蓋開口。
•請勿將本產品置放於靠近熱源的地方。除非有正常的通風，否則不可放在密閉位置中。
•請不要私自打開機殼，不要嘗試自行維修本產品，請由授權的專業人士進行此項工作。
限用物質含有情況標示聲明書
產品元件名稱
限用物質及其化學符號
鉛
Pb
鎘
Cd
汞
Hg
六價鉻
CrVI
多溴聯苯
PBB
多溴二苯醚
PBDE
PCB ○ ○ ○ ○ ○ ○
外殼 ○ ○ ○ ○ ○ ○

電源供應器 − ○ ○ ○ ○ ○
備考
1. "超出 0.1 wt %" 及 "超出 0.01 wt %"
系指限用物質之百分比含量超出百分比含
量基準值。
備考
2. "○"系指該項限用物質之百分比含量未超出百分比含量基準值。
備考
3. " − " 系指該項限用物質為排除項目。
Explanation of the symbols on the product label
Symbol
Explanation
DC voltage
Indoor use only
RECYCLING
This product bears the selective sorting symbol for Waste electrical and
electronic equipment (WEEE). This means that this product must be handled
pursuant to European directive 2012/19/EU in order to be recycled or
dismantled to minimize its impact on the environment.
User has the choice to give his product to a competent recycling organization or
to the retailer when he buys a new electrical or electronic equipment.
Class II equipment
AC voltage
Polarity of output terminals
Energy efficiency Marking

- I -
CONTENTS
Conventions ........................................................................................................................... 1
Chapter 1 Introduction ................................................................................................... 2
1.1 Product Overview .......................................................................................................2
1.2 Product Appearance .................................................................................................2
1.2.1 The Front Panel..............................................................................................................2
1.2.2 The Back Panel ..............................................................................................................3
Chapter 2 Hardware Installation .................................................................................. 5
2.1 Positioning the Modem Router..............................................................................5
2.2 Connecting the Modem Router.............................................................................6
Chapter 3 Quick Start ..................................................................................................... 8
Chapter 4 Software Configuration ............................................................................ 11
4.1 Status............................................................................................................................ 11
4.1.1 Device Info ................................................................................................................... 11
4.1.2 System Log.................................................................................................................. 12
4.1.3 Statistics ....................................................................................................................... 13
4.2 Interface Setup ......................................................................................................... 16
4.2.1 Internet .......................................................................................................................... 16
4.2.2 LAN ................................................................................................................................. 21
4.2.3 Wireless......................................................................................................................... 25
4.2.4 6RD ................................................................................................................................. 33
4.2.5 Guest Network ............................................................................................................ 34
4.3 Advanced Setup....................................................................................................... 35
4.3.1 Firewall........................................................................................................................... 35
4.3.2 Routing .......................................................................................................................... 36
4.3.3 NAT ................................................................................................................................. 37
4.3.4 QoS ................................................................................................................................. 40
4.3.5 VLAN .............................................................................................................................. 41
4.3.6 ADSL............................................................................................................................... 43
4.4 Access Management.............................................................................................. 44
4.4.1 ACL ................................................................................................................................. 44
4.4.2 Filter................................................................................................................................ 45
4.4.3 SNMP.............................................................................................................................. 51
4.4.4 UPnP............................................................................................................................... 51
4.4.5 DDNS.............................................................................................................................. 52

- II -
4.4.6 CWMP ............................................................................................................................ 52
4.5 Maintenance............................................................................................................... 53
4.5.1 Administration............................................................................................................. 53
4.5.2 Time Zone..................................................................................................................... 54
4.5.3 Firmware ....................................................................................................................... 55
4.5.4 SysRestart.................................................................................................................... 57
4.5.5 Diagnostics .................................................................................................................. 57
4.6 Help................................................................................................................................ 58
Appendix A: Configuring the PC..................................................................................... 60
Appendix B: Troubleshooting ......................................................................................... 65

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300Mbps Wireless N ADSL2+ Modem Router
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Conventions
The modem router or MW300D, or device mentioned in this User Guide stands for 300Mbps
Wireless N ADSL2+ Modem Router without any explanations.
Parameters provided in the pictures are just references for setting up the product, which may
differ from the actual situation.
You can set the parameters according to your demand.
More Info
Specifications and the latest software can be found at the product page at the official website
http://www.mercusys.com.
The Quick Installation Guide can be found where you find this guide or inside the package of
the router.
*Maximum wireless signal rates are the physical rates derived from IEEE Standard 802.11
specifications. Actual wireless data throughput and wireless coverage are not guaranteed and
will vary as a result of 1) environmental factors, including building materials, physical objects,
and obstacles, 2) network conditions, including local interference, volume and density of traffic,
product location, network complexity, and network overhead, and 3) client limitations, including
rated performance, location, connection, quality, and client condition.

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300Mbps Wireless N ADSL2+ Modem Router
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Chapter 1 Introduction
1.1 Product Overview
Mercusys’s Modem Router is a combined wired/wireless network connection device with
integrated wireless router and DSL modem, reducing hassle of configuration and saving space.
With ADSL and WAN, the modem router is compatible with ADSL connections and fiber/cable
access.
With Ethernet ports and antennas, the modem router provides wired and wireless access for
multiple computers and mobile devices.
With various features and functions, the modem router is the perfect hub of your home or
business network.
1.2 Product Appearance
1.2.1 The Front Panel
The modem router’s LEDs are located on the front panel (View from left to right).
Name Status Indication
(Power)
On
System initialization completes.
Flash
System initializing or firmware upgrading is in process. Do
not disconnect or power off the modem router.
Off
Power is off.

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300Mbps Wireless N ADSL2+ Modem Router
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Name Status Indication
(ADSL)
On
ADSL synchronization is established.
Flash
ADSL synchronization is in progress.
Off
ADSL synchronization fails. Please refer to Note 1 for
troubleshooting.
(Internet)
On
Internet connection is available.
Flash
There is data being transmitted or received via the Internet.
Off
No successful Internet connection is available or the modem
router is operating in Bridge mode. Please refer to Note 2 for
troubleshooting.
(Wireless)
On
The wireless function is enabled.
Flash
The modem router is sending or receiving data over the
wireless network.
Off
The wireless function is disabled.
(LAN)
On
The LAN port is connected.
Flash
The modem router is sending or receiving data over this LAN
port.
Off
The LAN port is not connected.
Note:
1. If the ADSL LED is off, please check your Internet connection first. Refer to 2.2 Connecting
the Modem Router for more information about how to make Internet connection correctly.
If you have already made a right connection, please contact your ISP to make sure if your
Internet service is available now.
2. If the Internet LED is off, please check your ADSL LED first. If your ADSL LED is also off,
please refer to Note 1. If your ADSL LED is on, please check your Internet configuration.
You may need to check this part of information with your ISP and make sure everything has
been input correctly. Refer to 4.1.1 Device Info and 4.2.1 Internet for more information.
1.2.2 The Back Panel

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300Mbps Wireless N ADSL2+ Modem Router
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Item
Description
POWER
For connecting the modem router to power socket via the provided
power adapter.
WPS/RESET The switch for the WPS and Reset function. Please refer to the Note
below for more information.
LAN 1, LAN 2,
LAN 3
Through the port, you can connect the modem router to your PC or the
other Ethernet network devices.
ADSL
Through the port, you can connect the modem router with the
telephone. Or you can connect them by an external separate splitter. For
details, please refer to 2.2 Connecting the Modem Router.
Antennas
Used for wireless operation and data transmit.
Note:
If your client devices, such as wireless adapters, support Wi-Fi Protected Setup, then you can
press this button for about two seconds to quickly establish a connection between the router
and client devices and automatically configure wireless security for your wireless network. For
details, please refer to WPS Settings.
If you press this button for about 8 seconds, you will enable the RESET function. Refer to
Appendix B: Troubleshooting about how to reset the modem router to factory defaults.

MW300D
300Mbps Wireless N ADSL2+ Modem Router
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Chapter 2 Hardware Installation
2.1 Positioning the Modem Router
With the modem router, you can access your network from anywhere within the wireless
network coverage. However, the wireless signal strength and coverage vary depending on the
actual environment of your modem router. Many obstacles may limit the range of the wireless
signal, for example, concrete structures or thick walls.
For your security and best Wi-Fi performance, please:
•Do NOT locate the modem router in a place where it will be exposed to moisture or
excessive heat.
•Keep away from the strong electromagnetic radiation and the device of electromagnetic
sensitive.
•Place the modem router in a location where it can be connected to the various devices as
well as to a power source.
•Make sure the cables and power cord are safely placed out of the way to avoid a tripping
hazard.
Generally, the modem router is placed on a horizontal surface, such as on a shelf or desktop.
The device also can be mounted on the wall as shown in the following figure.
Note:
The diameter of the screw head, 4mm<D<7.5mm, and the distance of two screws is 58.5mm.
The screw that project from the wall need around 3.5mm based, and the length of the screw
need to be at least 20mm to withstand the weight of the product.

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300Mbps Wireless N ADSL2+ Modem Router
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2.2 Connecting the Modem Router
Before installing the device, please make sure your broadband service provided by your ISP is
available. If there is any problem, please contact your ISP. Before cable connection, cut off the
power supply and keep your hands dry. You can follow the steps below to install it.
Step 1: Connect the ADSL Line.
Method One: Directly connect the modem router to the phone jack with the ADSL line.
Method Two: Connect the modem router to the phone jack via a separate splitter.
External splitter can divide the data and voice, and then you can access the Internet
and make calls at the same time. The external splitter has three ports:
• LINE: Connect to the phone jack
• PHONE: Connect to the phone sets
• MODEM: Connect to the ADSL port of the modem router
Step 2: Connect your computer to the modem router.
Method One: Wired
Connect the computer to a LAN port on your modem router with an Ethernet cable.
Method Two: Wireless
Click the network icon of your computer or go to Wi-Fi Setting of your smart device,
then use the default SSID (Wireless Network Name) and Wireless Password printed on
the product label of the modem router to join the network.
Method Three: Via the WPS button
Wireless devices that support WPS, including Android phones, tablets, most USB
network cards, can be connected to your router through this method. (WPS is not
supported by iOS devices.)

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300Mbps Wireless N ADSL2+ Modem Router
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Note:
The WPS function cannot be configured if the wireless function of the modem router
is disabled. Also, the WPS function will be disabled if your wireless encryption is WEP.
Please make sure the wireless function is enabled and is configured with the
appropriate encryption before configuring the WPS.
1) Tap the WPS icon on the device’s screen.
2) Immediately press the WPS button on your modem router.
3) The WPS LED flashes for about two minutes during the WPS process.
4) When the WPS LED is on, the client device has successfully connected to the
modem router.
Step 3: Attach the power adapter. The electrical outlet shall be installed near the device and
shall be easily accessible.

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300Mbps Wireless N ADSL2+ Modem Router
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Chapter 3 Quick Start
This chapter will show you how to configure the basic functions of your modem router using
Quick Setup Wizard within minutes.
1. If the TCP/IP Protocol on your computer is set to the static (fixed) IP address, you need to
change it to obtain an IP address automatically. Please refer to Appendix A: Configuring
the PC for more detailed instruction.
2. Once your host PC is properly configured, launch a web browser and go to
http://mwlogin.net or 192.168.1.1.
3. Enter the default Username admin and the default Password admin, then click Login or
press Enter to access to the Quick Start.
Note:
A Quick Start window will pop up automatically when logging for the first time; otherwise,
select Quick Start from the menu and click RUN WIZARD.
4. Follow the steps below to set up your modem router quickly.

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300Mbps Wireless N ADSL2+ Modem Router
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Step 1: Click NEXT to continue.
Step 2: Configure the time zone for the modem router, and then click NEXT.
Step 3: Select your country and ISP from the dropdown list. Then select your ISP Connection
type and complete the corresponding settings with the information provided by your
ISP and click NEXT. Here we take PPPoE/PPPoA mode for example.

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300Mbps Wireless N ADSL2+ Modem Router
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Step 4: Configure the rules for the Wlan, and click NEXT.
Note:
If the Access Point is activated, the wireless function will be available even without the external
antenna because of an additional printed antenna. To adopt the wireless security protection
measures, please refer to section 4.2.3 Wireless.
Step 5: Click SAVE to finish the Quick Start.

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300Mbps Wireless N ADSL2+ Modem Router
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Chapter 4 Software Configuration
This User Guide recommends using the Quick Installation Guide for first-time installation. For
advanced users, if you want to know more about this device and make use of its functions
adequately, maybe you will get help from this chapter to configure the advanced settings
through the web management page to configure and manage the device.
After your successful login, you will see the main menus of the web management page and
submenus with detailed configurations or status information will be available after you click
one of the main menus. To apply any settings you have altered on the page, please click SAVE
to make the settings take effect.
4.1 Status
Choose Status, and you will see the following submenus: Device Info, System Log and
Statistics. Click any of them, and you can configure the corresponding function.
4.1.1 Device Info
Go to Status →Device Info, and you can view the device information, including LAN, Wireless,
WAN and ADSL. The information will vary depending on the settings of the modem router
configured on the Interface Setup screen.

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300Mbps Wireless N ADSL2+ Modem Router
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4.1.2 System Log
Go to Status →System Log, and you can query the logs of the modem router.

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300Mbps Wireless N ADSL2+ Modem Router
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The modem router can keep logs of all traffic. You can query the logs to find what happened to
your modem router.
Click CLEAR LOG to clear the logs.
Click SAVE LOG to save the logs.
4.1.3 Statistics
Go to Status →Statistics, and you can view the network traffic over Ethernet, ADSL and
WLAN.
Interface: You can select Ethernet, ADSL or WLAN to view the corresponding network traffic
over different ports.
•Select Ethernet, and you will see the statistics table as below.