D-Link DAP-1620
D-Link AC1200 Wi-Fi Range Extender (DAP-1620) Instruction Manual
Model: DAP-1620
1. Introduction
The D-Link AC1200 Wi-Fi Range Extender (DAP-1620) is designed to extend the coverage of your existing wireless network. It supports dual-band Wi-Fi (2.4 GHz and 5 GHz) with speeds up to 1200Mbps, providing enhanced wireless connectivity for various devices. This manual provides instructions for setting up, operating, and maintaining your DAP-1620.
2. Package Contents
Verify that your package contains the following items:
- DAP-1620 Device
- Quick Installation Guide (QIG)
- Wi-Fi Configuration Card
If any items are missing or damaged, please contact your local D-Link reseller.
3. Product Overview
Familiarize yourself with the physical components of the D-Link DAP-1620.

Figure 1: Front View of DAP-1620. This image displays the front of the D-Link DAP-1620 Wi-Fi Range Extender. It is a white rectangular device with two foldable antennas extending from the top. On the front panel, there is a circular WPS button with an indicator light, and a vertical strip of signal strength indicator lights.

Figure 2: Bottom View of DAP-1620. This image shows the bottom section of the D-Link DAP-1620. It features a standard two-prong power plug for wall outlet connection. Above the plug, there is an Ethernet (LAN) port and a small recessed Reset button.
3.1. LED Indicators
- Power LED: Indicates power status.
- Signal Strength LEDs: Displays the strength of the signal received from the main router. More illuminated LEDs indicate a stronger signal.
- WPS LED: Indicates the status of the Wi-Fi Protected Setup (WPS) connection.
3.2. Ports and Buttons
- LAN Port: An Ethernet port for connecting wired devices or for setting up the extender in Access Point mode.
- Reset Button: Used to restore the device to factory default settings. Press and hold for approximately 10 seconds while the device is powered on.
- WPS Button: Initiates a WPS connection with a compatible router for easy setup.
4. Setup
The D-Link DAP-1620 can be set up using two primary methods: Wi-Fi Protected Setup (WPS) or a web browser.
4.1. WPS Setup (Recommended)
- Plug the DAP-1620 into a power outlet near your existing wireless router. Wait for the Power LED to turn solid green.
- Press the WPS button on your wireless router.
- Within two minutes, press the WPS button on the DAP-1620. The WPS LED on the extender will blink during the connection process.
- Once connected, the WPS LED will turn solid green, and the Signal Strength LEDs will illuminate, indicating a successful connection.
- Unplug the DAP-1620 and move it to a location halfway between your router and the Wi-Fi "dead zone." Ensure the Signal Strength LEDs show at least two bars for optimal performance.
Note: If your router does not have a WPS button, or if WPS setup fails, proceed with the Web Browser Setup.
4.2. Web Browser Setup
- Plug the DAP-1620 into a power outlet.
- Connect your computer or mobile device to the DAP-1620's default Wi-Fi network (e.g., "dlink-XXXX"). The network name and password can be found on the Wi-Fi Configuration Card.
- Open a web browser and enter http://dlinkap.local or the IP address (refer to the QIG if dlinkap.local does not work).
- Follow the on-screen instructions of the setup wizard to select your existing Wi-Fi network and enter its password.
- Configure the extended network's name (SSID) and password. You can choose to use the same as your main network or create new ones.
- Once setup is complete, unplug the DAP-1620 and move it to your desired location. Verify the Signal Strength LEDs for optimal placement.
5. Operating the Extender
The DAP-1620 operates as a Wi-Fi range extender by default, but can also function as an Access Point.
5.1. Wi-Fi Extender Mode
In this mode, the DAP-1620 connects wirelessly to your existing router and rebroadcasts the signal, extending its range. Devices connect to the extended network (either with the same or a different SSID) and access the internet through the extender.
5.2. Access Point (AP) Mode
To use the DAP-1620 as an Access Point, connect it to your router using an Ethernet cable via the LAN port. In this mode, the DAP-1620 creates a new Wi-Fi network, converting a wired connection into a wireless one. This is useful for areas with existing Ethernet wiring but no Wi-Fi coverage.
5.3. Optimal Placement
For best performance, place the DAP-1620 in a location where it receives a strong signal from your main router (indicated by at least two or three Signal Strength LEDs) and is also close enough to the areas where you need extended Wi-Fi coverage. Avoid placing it near large metal objects, concrete walls, or other devices that may cause interference (e.g., microwaves, cordless phones).
6. Maintenance
Regular maintenance helps ensure the optimal performance and longevity of your D-Link DAP-1620.
- Firmware Updates: Periodically check the D-Link support website for firmware updates. Updating the firmware can improve performance, add new features, and fix bugs.
- Cleaning: Keep the device clean and free from dust. Use a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Ventilation: Ensure the device has adequate ventilation. Do not block the ventilation holes.
- Power Cycle: If you experience intermittent issues, try power cycling the device by unplugging it from the power outlet for 10 seconds and then plugging it back in.
7. Troubleshooting
This section addresses common issues you might encounter with your DAP-1620.
7.1. No Internet Access After Setup
- Check Signal Strength: Ensure the DAP-1620 is receiving a strong signal from your main router. Relocate the extender if the Signal Strength LEDs indicate a weak connection (fewer than two bars).
- Verify Router Password: Confirm that you entered the correct Wi-Fi password for your main router during setup.
- Restart Devices: Power cycle your main router, the DAP-1620, and your connected devices.
7.2. Frequent Disconnections or Slow Speeds
- Relocate Extender: Move the DAP-1620 closer to your main router to improve the signal quality.
- Check for Interference: Ensure the extender is not near other electronic devices that might cause interference.
- Firmware Update: Check for and install the latest firmware for the DAP-1620.
- Router Channel: Consider changing the Wi-Fi channel on your main router to avoid congestion.
7.3. Cannot Access Web-Based Setup Utility
- Direct Connection: Ensure your device is connected to the DAP-1620's Wi-Fi network (e.g., "dlink-XXXX") or directly via an Ethernet cable.
- Correct Address: Verify you are using the correct address: http://dlinkap.local or the IP address.
- Reset Device: If all else fails, perform a factory reset by pressing and holding the Reset button for 10 seconds. This will revert all settings to default, and you will need to set up the extender again.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | DAP-1620 |
| Wireless Type | 802.11ac, 802.11b, 802.11g, 802.11n |
| Data Transfer Rate | 1200 Megabits Per Second |
| Frequency Band Class | Dual-Band (2.4 GHz and 5 GHz) |
| Brand | D-Link |
| Item Weight | 4.8 ounces |
| Product Dimensions (LxWxH) | 2.32 x 1.65 x 4.72 inches |
| Voltage | 240 Volts |
| Manufacturer | D-Link Systems, Inc. |
9. Technical Support
For further assistance, technical support, or to download the latest firmware and documentation, please visit the official D-Link support website. You can typically find support resources by searching for your product model (DAP-1620) on their website.
Note: Support contact information and hours may vary by region.
10. Warranty Information
D-Link products are covered by a limited warranty. The specific terms and conditions of the warranty vary by region and product. Please refer to the warranty information included with your product packaging or visit the D-Link website for detailed warranty statements applicable to your purchase.
This warranty typically covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or external causes.