Unpack Your Modem Router

Your package contains the following items.

Figure 1. Package contents for the modem router

Table 1. Legend

Modem router

1.

Antennas (4)

2.

Power supply (varies by region)

3.

DSL microfilter (varies by region)

4.

Ethernet cable

5.

Phone cable

6.

Your package might contain more items.The filter or phone cable provided depends on the region. In some regions,

a CD is included in the package.

Attach the Antennas

The modem router comes with four antennas.

Hardware Overview of the Modem Router

11

Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800

To attach the antennas:

1.

To determine where to attach the antennas, match the labels on the antennas with the labels on the modem

router.

2.

Align the antennas with the antenna posts on the modem router.

3.

Attach the antennas on the threaded antenna posts.

4.

Position the antennas for the best WiFi performance.

We recommend that you position all of the antennas vertically, as shown.

Top Panel With LEDs

The status LEDs and buttons are located on the top panel of the modem router.

Hardware Overview of the Modem Router

12

Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800

Figure 2. LEDs and buttons of the modem router

Hardware Overview of the Modem Router

13

Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800

Table 2. LED and button descriptions

Description

LED

•

Solid amber

. The modem router is starting.

If the Power LED lights solid amber during any other time, a power-on self-test (POST) failure or

device malfunction occurred.

For more information, see

Power LED Remains Solid Amber

on page 285.

•

Blinking amber

. The modem router was reset to factory default settings and is restarting.

For more information, see

Return the Modem Router to Its Factory Default Settings

on page 221.

•

Solid white

. The modem router is ready.

•

Off

. Power is not supplied to the modem router.

For more information, see

Power LED Is Off

on page 285.

Power

•

Solid white

.The modem router is connected to a DSL service or cable or fiber modem and detected

an Internet connection.

•

Solid amber

. The modem router is not connected to a DSL service or cable or fiber modem or did

not detect an Internet connection.

For more information, see

Troubleshoot the Internet Connection

on page 286.

•

Blinking white

. The modem router is negotiating the best possible speed on the DSL line.

•

Alternating white and amber

. The traffic meter is enabled and the traffic limit is reached.

•

Off

. The modem router cannot connect to the Internet or the Internet connection failed.

DSL/Internet

•

Solid white

. The 2.4 GHz WiFi radio is operating.

•

Blinking white

. The modem router is sending or receiving WiFi traffic over the 2.4 GHz radio.

•

Off

. The 2.4 GHz WiFi radio is off.

2.4 GHz WiFi

•

Solid white

. The 5 GHz WiFi radio is operating.

•

Blinking white

. The modem router is sending or receiving WiFi traffic over the 5 GHz radio.

•

Off

. The 5 GHz WiFi radio is off.

5 GHz WiFi

•

Solid white

. A USB device is connected and is ready.

•

Blinking white

. Data is being transmitted to or from the USB device.

•

Off

. No USB device is connected, or someone clicked the

Safely Remove Hardware

button and

it is now safe to remove the attached USB device.

USB 3.0 port 1 and USB

3.0 port 2

Hardware Overview of the Modem Router

14

Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800

Description

LED

•

Solid white

. The modem router is connected to an eSATA device that is ready.

•

Blinking white

. An eSATA device is plugged into the modem router and is trying to connect.

•

Off

. No eSATA device is connected.

eSATA

The LED color indicates the speed: white for Gigabit Ethernet connections and amber for 100 Mbps or

10 Mbps Ethernet connections.

•

Solid white or solid amber

. A powered-on device is connected to the Ethernet port.

•

Blinking white or blinking amber

. Data is being transmitted over the port.

•

Off

. No powered-on device is connected to the Ethernet port.

Ethernet ports 1–4

Pressing this button for two seconds turns the 2.4 GHz and 5 GHz WiFi radios on and off.

If this LED is lit, the WiFi radios are on. If this LED is off, the WiFi radios are turned off and you cannot

use WiFi to connect to the modem router.

For more information, see

Control the WiFi Radios

on page 115 and

Troubleshoot With the LEDs

on page

284.

WiFi On/Off button with

WiFi LED

This button lets you use WPS to join the WiFi network without typing the WiFi password. The WPS LED

blinks white during this process and then lights solid white.

For more information, see

Use WPS to Add a Device to the WiFi Network

on page 108.

WPS button with WPS LED

You can use the

LED On/Off

switch on the back panel of the modem router to turn most LEDs on the top of the

modem router on or off (see

Back Panel With Ports, Buttons, Connectors, and Switch

on page 15). If you turn off

the LEDs, the Power LED remains on.

Back Panel With Ports, Buttons, Connectors, and Switch

The back panel of the modem router provides ports, buttons, antenna connectors, a DC power connector, and an

LED switch. For information about attaching the antennas, see

Attach the Antennas

on page 11.

Figure 3. Modem router back panel

Hardware Overview of the Modem Router

15

Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800