the WatchGuard Web site that is used herein are either registered trademarks or trademarks of WatchGuard Technologies,
Inc. and/or its subsidiaries in the United States and/or other countries. All other trademarks are the property of their
respective owners.
Revised: November 21, 2019
Companies, names, and data used in examples herein are fictitious unless otherwise noted. No part of this guide may be
reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express
written permission of WatchGuard Technologies, Inc.
Complete copyright, trademark, patent, and licensing information can be found in
the WatchGuard product documentation. You can find this document online at:
https://www.watchguard.com/help
ABOUT WATCHGUARD
WatchGuard® Technologies, Inc. is a global leader in network security, providing bestin-class Unified Threat Management, Next Generation Firewall, secure Wi-Fi, and
network intelligence products and services to more than 75,000 customers worldwide.
The company's mission is to make enterprise-grade security accessible to companies of
all types and sizes through simplicity, making WatchGuard an ideal solution for
Distributed Enterprises and SMBs. WatchGuard is headquartered in Seattle,
Washington, with offices throughout North America, Europe, Asia Pacific, and Latin
America. To learn more, visit WatchGuard.com.
For additional information, promotions and updates, follow WatchGuard on Twitter,
@WatchGuard on Facebook, or on the LinkedIn Company page. Also, visit our InfoSec
blog, Secplicity, for real-time information about the latest threats and how to cope with
them at www.secplicity.org.
iiWatchGuard AP420
ADDRESS
505 Fifth Avenue South
Suite 500
Seattle, WA 98104
SUPPORT
www.watchguard.com/support
U.S. and Canada +877.232.3531
All Other Countries +1.206.521.3575
SALES
U.S. and Canada +1.800.734.9905
All Other Countries +1.206.613.0895
Hardware Specifications
The WatchGuard® AP family of wireless access points provide secure, reliable, wireless communications while
delivering high performance and broad coverage—a perfect combination of services to meet the needs of
enterprise-level customers, small businesses, branch offices, campuses, and hotels alike.
Internal antennas, slim cases, minimalist labeling, and small LEDs, coupled with wall and ceiling mount
options, make these devices ideal for low profile deployment scenarios. Power can be provided by any Power
over Ethernet (PoE+) power source or an AC adapter. WatchGuard AP420 devices are high performance,
enterprise access points that feature 4x4:4 MU-MIMO 802.11ac Wave 2 capabilities with a dedicated third
radio for security scanning and automated over-the-air attack prevention.
There are two ways you can manage your AP420:
Total Wi-Fi and Secure Wi-Fi with WatchGuard Wi-Fi Cloud
A powerful cloud-based enterprise wireless management solution for AP configuration, security, and
monitoring.
Basic Wi-Fi with WatchGuard Firebox Gateway Wireless Controller
Local management, configuration, security, and monitoring of APs directly from your WatchGuard
Firebox. The WatchGuard Firebox requires Fireware v11.12.4 and higher.
Note: The third-radio is not available when managed locally with a Gateway Wireless Controller.
For more information about how to set up and manage your WatchGuard AP, you can find documentation
online at: https://www.watchguard.com/help
Optional mounting accessories for walls or ceilings without a T-rail, or different size T-rail ceilings are
also available from WatchGuard. For more information, see “Mounting Instructions” on page 9.
Hardware Guide1
Hardware Specifications
About Your Hardware
Hardware Specifications
AP420
Radio Type and
Frequency Band
Antenna10 integrated omnidirectional antennas
Ethernet interface1 x 10/100/1000 Mbps Gigabit Ethernet (LAN1)
2.4GHz, 802.11b/g/n. Max data rate: 800 Mbps
5GHz, 802.11a/n/ac. Max data rate: 1.733 Gbps
Third radio for dedicated RF and security scanning
4 antennas: 2.4GHz radio
4 antennas: 5GHz radio
2 antennas: Third scanning radio
1 x 10/100/1000 Mbps Gigabit Ethernet (LAN2) for link
aggregation or a wired extension.
1 x RJ45 serial console
RS232 Serial
Bits per second: 115200
Data Bits: 8, Stop Bits: 1
Parity: None, Flow Control: None
USB Port1 USB 2.0 port (Not in use)
Power InterfacePower over Ethernet: 802.3at (PoE+) / 802.3af (PoE)
DC jack (6.3mm connector): 12V DC input, 2.0A
Power
Consumption
MTBF Rating1,320,756 hours at 25°C
Dimensions220mm × 220mm × 57mm
Weight2.86 lb. (1.3 kg)
802.3at (PoE+): 21.5W
802.3af (PoE): 12.95W
DC power: 19.5W
Idle: 8W
662,479 hours at 40°C
2WatchGuard AP420
Environmental Requirements
To safely install your WatchGuard AP, we recommend that you:
Install the device indoors.
Make sure the device has adequate clearance for air flow and cooling.
Connect it to a surge-protected power supply to prevent damage from sudden power changes
Other environmental requirements:
Operating temperature0°C to 40°C (32°F to 104°F)
Operating relative humidity0% to 95% non-condensing
Non-operating temperature-25°C to 75°C (-13°F to 167°F)
Non-operating relative humidity0% to 95% non-condensing
Hardware Specifications
Hardware Guide3
Hardware Specifications
Hardware Description
Device Connections and Buttons
Ethernet Network Interfaces
LAN1 (PoE+): Standard RJ45 connector that supports link speeds of 10/100/1000 Mbps and PoE+
connectivity.
LAN2: Standard RJ45 connector that supports link speeds of 10/100/1000 Mbps.
This interface can be used for link aggregration or as a wired extension for a wireless SSID that has
NAT enabled. For more information, see the WatchGuard Wi-Fi Cloud Help.
For APs managed locally by a Gateway Wireless Controller with Fireware v12.2.1 and higher, you can
bridge together the LAN ports on AP models that have two LAN interfaces. This enables you to extend
the wired network on the second LAN interface. For more information, see the Fireware Help.
Power Input
The WatchGuard AP420 can be powered by 802.3at PoE+ or 802.3af PoE on the LAN1 (PoE+)
interface, or an optional power adapter.
To make sure that LLDP-capable switches provide appropriate PoE+ power to the AP420:
You must enable LLDP on the switch
Disable static allocation of maximum power of 30W (if previously configured)
For more information, see AP420 and PoE+ power with switches and LLDP.
The use of 802.3af PoE results in limited feature functionality of the AP:
USB port and LAN2 Ethernet extension port is disabled.
The 2.4 GHz radio is downgraded to 1x1 15dbm or lower, or as set in the device template.
The 5 GHz radio is downgraded to 1x1 15dbm or lower, or as set in the device template.
Third scanning radio is downgraded to 1x1 with 12dBm transmit power. Lower PoE power
results in reduced performance and effectiveness of WIPS scanning and intrusion prevention
functions.
4WatchGuard AP420
Hardware Specifications
Console Port
Standard RJ45 connector for serial console access.
USB Port
The USB port is currently not in use.
Reset Button
Resets the WatchGuard AP to factory-default settings. You must use a paper clip or other small object
to press the reset button through the small hole on top of the device.
To reset the device to factory-default settings, press and hold the reset button for up to 10 seconds
until all LEDs go off to indicate that the device has rebooted.
Kensington Security Lock Slot
Kensington security lock slot for use with a security cable to secure your device.
Hardware Guide5
Hardware Specifications
Device Indicators
The front panel of the AP420 has four LEDs that indicate the status of the AP.
6WatchGuard AP420
Hardware Specifications
The AP420 always works in AP combo mode where the first two radios work in AP mode and the third radio
works in WIPS (Wireless Intrusion Prevention System) sensor mode. The fourth LED indicates that the WIPS
sensor on the third radio is active.
AP Firmware 8.8.1 and Higher
LED
Status
OffPowered off.Radio inactive.
GreenPowered on. Operating at normal power and capabilities.
Flashing
Green
OrangePowered on. Operating at reduced power and
Flashing
Orange
Power/Ethernet2.4 GHz, 5 GHz, and
3rd Radios
Radio active.
(PoE+ or DC power). Connected at 10/100/1000 Mbps
Not connected to Wi-Fi Cloud or paired with a Gateway
Wireless Controller.
capabilities. (For example: PoE 802.3af)
See AP Power Requirements
No IP address received from DHCP.-
.
-
-
Hardware Guide7
Hardware Specifications
AP Firmware 8.8.0 and Lower
Power /
Ethernet
Solid greenSolid greenSolid greenPowered on and operating correctly with a gigabit
Fast flash greenAnyAnyDid not receive a valid IP address from DHCP.
Slow flash greenAnyAnyCannot connect to WatchGuard
Solid green /
Solid yellow
Solid green /
Solid yellow
Solid green /
Solid yellow
Solid Green /
Solid yellow
Solid yellowSolid greenSolid greenPowered on and operating correctly with non-gigabit
Fast flash yellowAnyAnyDid not receive a valid IP address from DHCP.
Slow flash yellowAnyAnyCannot connect to WatchGuard Wi-Fi Cloud services.
Solid orangeAnyAnyNo ethernet connection.
Slow flash orangeAnyAnySoftware upgrade in progress.
OffOffOffNot powered on or in startup process.
2.4GHz5GHzDescription
ethernet connection.
Connected to WatchGuard Wi-Fi Cloud services.
Connected with a gigabit ethernet connection.
Wi-Fi Cloud services. Connected with a gigabit
ethernet connection.
Fast flash
green
Solid greenFast flash
Slow flash
green
Solid greenSlow flash
Solid greenTroubleshooting running on 2.4GHz radio.
LED1 = Solid green if AP is on gigabit ethernet
connection. Solid yellow if on non-gigabit ethernet
connection.
Troubleshooting running on 5GHz radio.
green
Solid greenPrevention running on 2.4GHz radio.
green
LED1 = Solid green if AP is on gigabit ethernet
connection. Solid yellow if on non-gigabit ethernet
connection.
LED1 = Solid green if AP is on gigabit ethernet
connection. Solid yellow if on non-gigabit ethernet
connection.
Prevention running on 5GHz radio.
LED1 = Solid green if AP is on gigabit ethernet
connection. Solid yellow if on non-gigabit ethernet
connection.
ethernet connection.
Connected to WatchGuard Wi-Fi Cloud services.
Connected with non-gigabit ethernet connection.
Connected with non-gigabit ethernet connection.
The LEDs for 2.4GHz and 5GHz will flash indicating activity if a client is connected on the
corresponding radio. If no client is connected to a radio, the corresponding LED will remain solid
green.
8WatchGuard AP420
Mounting Instructions
Your package includes the AP420 device, and a mounting bracket.
Hardware Specifications
The MAC address and serial number of your AP are printed on a label on the back of the device.
Make sure you record this information before you mount the AP.
Hardware Guide9
Hardware Specifications
T-rail Brackets
Use the included mounting bracket (15/16”, 24mm, Part #: WG8021) to install the AP420 on a ceiling with a
T-rail. Optional T-rail mount brackets are available from WatchGuard:
9/16” T-rail mount, 15mm, Part #: WG8026
Silhouette/Interlude T-rail mount, 15mm, Part #: WG8027
1. Put the first mounting post on the back of the AP over the lower bracket notch and rotate into place.
2. Make sure that all the mounting posts on the back of the AP are securely positioned in their bracket
notches.
3. To attach the bracket to the T-rail, rotate the bracket so it is parallel to the T-rail, and snap the bracket
on the T-rail.
10WatchGuard AP420
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