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D-Link DSL-3785

D-Link DSL-3785
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Version 1.00 | 06/05/2017
User Manual
DSL-3785
Wireless AC1200 Dual-Band Gigabit ADSL2+/VDSL2
Modem Router

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D-Link DSL-3785 Specifications

General IconGeneral
Wi-Fi bandDual-band (2.4 GHz / 5 GHz)
Wi-Fi standardsWi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standardWi-Fi 5 (802.11ac)
WLAN data transfer rate (max)1167 Mbit/s
WLAN data transfer rate (first band)300 Mbit/s
WLAN data transfer rate (second band)866 Mbit/s
Ethernet LANYes
Networking standardsIEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1p, IEEE 802.3, IEEE 802.3az, IEEE 802.3u, IEEE 802.3x
Ethernet LAN interface typeGigabit Ethernet
Memory card slot(s)No
RJ-11 ports quantity1
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Ethernet LAN (RJ-45) ports4
3G/4G USB modem compatibility-
Product typeTabletop router
Product colorBlack
LED indicatorsLAN, Power, WLAN, WPS
Antennas quantity2
Mac operating systems supportedMac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Windows operating systems supportedWindows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 Pro, Windows 10 Pro x64, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Security algorithmsWPA, WPA2, WPS
AC input voltage100 - 240 V
Power source typeAC
Storage temperature (T-T)-20 - 70 °C
Operating temperature (T-T)0 - 45 °C
Operating relative humidity (H-H)10 - 95 %
CertificationCE, LVD
Weight and Dimensions IconWeight and Dimensions
Depth150 mm
Width210 mm
Height30.75 mm
Weight113.05 g

Summary

Preface

Manual Revisions

Records changes made to the manual over time.

Trademarks

Lists company and product trademarks mentioned.

ErP Power Usage

Details the device's energy efficiency and power consumption.

Product Overview

Package Contents

Lists items included in the box with the router.

System Requirements

Specifies hardware and software needs for setup.

Introduction

Provides a general overview of the router's capabilities and features.

Features

Highlights the key functionalities and benefits of the device.

Hardware Overview

Describes the physical components and ports of the router.

Back Panel Ports

Details ports and connectors located on the rear of the router.

Side Panel Buttons

Details buttons and indicators located on the side of the router.

LED Indicators

Explains the meaning of the status indicator lights on the router.

Installation

Before You Begin

Preparation steps and information needed before starting installation.

Wireless Installation Considerations

Tips for optimal router placement to maximize wireless signal.

Manual Setup

Step-by-step instructions for manually configuring the router.

Getting Started

Setup Wizard

Step-by-step guide for initial router configuration using the wizard.

Configuration

Accessing the Configuration Utility

How to log into the router's web-based interface.

Internet Connection Setup

Configuring WAN connection types and viewing status.

Wireless Network Setup

Configuring Wi-Fi SSIDs, security, and Guest Zone.

Local Network Settings

Configuring LAN IP address and DHCP server settings.

USB Device Sharing

Configuring access to USB storage devices connected to the router.

Security Settings

Configuring Firewall, Access Control List (ACL), and IP/MAC Filtering.

Advanced Features

Configuring Port Forwarding, DMZ, Static Routing, Dynamic DNS, and Web Filter.

System Management

Managing time, logs, system settings, firmware upgrades, and diagnostics.

Connect and Share a USB Device

Connect a USB Storage Device

How to physically connect a USB storage device to the router.

Connecting from Windows

Steps to access USB shared files from a Windows PC.

Connecting from Mac

Steps to access USB shared files from a Mac computer.

Connecting to a Wireless Network

WPS Button Connection

Using WPS for easy and secure wireless connection.

Connecting with Windows OS

Steps for connecting to the wireless network from Windows.

WPAWPA2 Wireless Security

Information on securing wireless networks with WPA/WPA2.

Troubleshooting

Cannot Access Configuration Utility

Resolving issues preventing access to the router's interface.

Forgot Router Password

Steps to reset the router if the administrator password is lost.

Connection Issues

Troubleshooting problems connecting to specific sites or sending emails.

Wireless Basics

Understanding Wireless Technology

Explains wireless concepts, D-Link benefits, and how wireless works.

Wireless Network Types

Differentiates between Wireless Local Area Network (WLAN) and Wireless Personal Area Network (WPAN).

Wireless Usage and Benefits

Discusses where wireless is used and its advantages.

Networking Basics

Check Your IP Address

Verifying the computer's IP configuration using ipconfig.

Statically Assign IP Address

Manually configuring IP address, subnet mask, and DNS settings.

Wireless Security Explained

Details on different levels of wireless security like WPA/WPA2.

Technical Specifications

Device Interfaces

Lists physical ports, wireless standards, and ADSL/VDSL standards.

Power and Operating Conditions

Details power input/output, operating temperature, and humidity.

Dimensions and Weight

Provides the physical measurements and weight of the device.

Regulatory Statements

Frequency Bands and Output Power

Specifies radio frequency bands and maximum output power compliance.

European Community Declarations

Contains conformity statements for the European Union.

Safety Instructions

General safety guidelines for product use and handling.

Product Disposal and Recycling

Guidelines for environmentally sound disposal and recycling.

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