Page 11 / 123 Scroll up to view Page 6 - 10
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D-Link DIR-857 User Manual
Section 1 - Product Overview
Hardware Overview
Connections
1
LAN Ports (1-4)
Connect Ethernet devices such as computers, switches, and hubs.
2
Internet Port
The auto MDI/MDIX Internet port is the connection for the Ethernet cable to the cable
or DSL modem.
3
USB
Connect a USB 1.1, 2.0, or 3.0 flash drive to configure the wireless settings using WCN.
4
Reset
Press and hold the reset button to restore the router to its original factory settings.
5
Power Button
Press the power button to power on and off.
6
Power Receptor
Receptor for the supplied power adapter.
1
2
3
4
5
6
Page 12 / 123
7
D-Link DIR-857 User Manual
Section 1 - Product Overview
Hardware Overview
Front View
1
WPS Button
Press this button to add your device to an existing network or to create a new network.
Power LED will blink on and off when WPS button is pressed
2
SD Card Port
Insert your SD Card for sharing multimedia files such as video, music, and images. You
may access the files on the SD card by opening a web browser and enter
\\dlinkrouter
.
The power LED will be blinking blue when the SD card is in use. Note that removing the
SD card while the power LED is blinking will damage your SD card.
Currently FAT and FAT32 file formats support full read/write access to the SD card. Other
formats may only support read-only.
1
2
Page 13 / 123
8
D-Link DIR-857 User Manual
Section 1 - Product Overview
LEDs
1
Power LED
A solid light indicates a proper connection to the power supply.
2
Internet LED
A solid light indicates connection on the Internet port. This LED blinks during data
transmission. A solid blue light indicates that there is an Internet connection, an orange
light indicates that there is none.
1
2
Page 14 / 123
9
D-Link DIR-857 User Manual
Section 2 - Installation
Before you Begin
Installation
This section will walk you through the installation process. Placement of the router is very important. Do not place the router in an enclosed area
such as a closet, cabinet, or in the attic or garage.
Please configure the router with the computer that was last connected directly to your modem. Also, you can only use the Ethernet port on your
modem. If you were using the USB connection before using the router, then you must turn off your modem, disconnect the USB cable and connect
an Ethernet cable to the Internet port on the router, and then turn the modem back on. In some cases, you may need to call your ISP to change
connection types (USB to Ethernet).
If you have DSL and are connecting via PPPoE, make sure you disable or uninstall any PPPoE software such as WinPoet, Broadjump, or Enternet 300
from your computer or you will not be able to connect to the Internet.
Page 15 / 123
10
D-Link DIR-857 User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless router lets you access your network using a wireless connection from virtually anywhere within the operating range of your
wireless network. Keep in mind that the number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass
through, may limit the range. Typical ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or
business. The key to maximizing wireless range is to follow these basic guidelines:
1.
Keep the number of walls and ceilings between the D-Link router and other network devices to a minimum - each wall or ceiling
can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or ceilings is
minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.5 meters), at a 45-degree angle appears to be
almost 3 feet (1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position devices so that the signal will
travel straight through a wall or ceiling (instead of at an angle) for better reception.
3.
Building Materials make a difference. A solid metal door or aluminum studs may have a negative effect on range. Try to position
access points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials and objects
such as glass, steel, metal, walls with insulation, water (fish tanks), mirrors, file cabinets, brick, and concrete will degrade your
wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise.
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security systems), your
wireless connection may degrade dramatically or drop completely. Make sure your 2.4GHz phone base is as far away from your
wireless devices as possible. The base transmits a signal even if the phone in not in use.

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