Contents

Chapter 1 Product Overview
- 1.1 Package Contents
- 1.2 Introduction
- 1.3 Features
- 1.4 Hardware Overview
Chapter 2 Installation
- 2.1 Hardware Installation
- 2.2 Software Installation
Chapter 3 Connect to a Wireless Network
- 3.1 To connect using TWCU
- 3.2 To connect using QSS
  - 3.2.1 PBC (Push Button Configuration) method
  - 3.2.2 PIN method
    - 3.2.2.1. Enter the PIN from your AP device
    - 3.2.2.2. Enter a PIN into your AP device
- 3.3 To connect using Windows built-in wireless utility
  - 3.3.1 In Windows 7
  - 3.3.2 In Windows Vista
  - 3.3.3 In Windows XP
Chapter 4 Management
- 4.1 Profile
  - 4.1.1 Add a profile
  - 4.1.2 Modify a profile
  - 4.1.3 Delete a profile
- 4.2 Advanced
- 4.3 About
Chapter 5 AP Mode
Chapter 6 Uninstall Software
- 6.1 Uninstall the utility software from your PC
- 6.2 Uninstall the driver software from your PC
Appendix A: Specifications
Appendix B: Glossary

tp-link TL-WN851ND V1 User's Guide

Pages 39

Year 2011

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tp-link TL-WN851ND Specification

The TP-Link TL-WN851ND is a wireless network adapter designed to enhance the connectivity of desktop computers to wireless networks. It features IEEE 802.11n technology, offering data transfer rates of up to 300Mbps, which makes it suitable for bandwidth-intensive activities such as HD video streaming and online gaming. This PCI adapter is backward compatible with IEEE 802.11b/g standards, ensuring versatility with various wireless routers and networks.

The adapter is equipped with dual external antennas that utilize MIMO (Multiple Input, Multiple Output) technology to improve wireless performance and stability. These detachable antennas provide the flexibility to upgrade or adjust the antenna to achieve optimal signal reception. Operating in the 2.4GHz frequency band, the TL-WN851ND offers a reliable and interference-reduced wireless connection.

Installation is straightforward with support for Windows operating systems ranging from Windows 2000 to Windows 7, ensuring compatibility with a wide range of legacy and contemporary systems. The device supports WEP, WPA, and WPA2 encryption standards, ensuring secure data transmission across wireless networks. Additionally, the TP-Link TL-WN851ND includes a bundled utility that facilitates easy setup and management of wireless connections.

The adapter's compact design fits seamlessly into a standard PCI slot, making it a convenient solution for upgrading desktop systems to wireless capability without requiring significant space or additional hardware modifications. Overall, the TP-Link TL-WN851ND is an efficient and cost-effective option for users seeking to enhance their desktop's wireless networking performance with reliable speed and coverage.

tp-link TL-WN851ND F.A.Q.

How do I install the TP-Link TL-WN851ND drivers on Windows?

To install the drivers for the TL-WN851ND on Windows, first download the appropriate driver from the TP-Link official website. Unzip the downloaded file, open Device Manager, locate your network adapter under 'Other Devices', right-click it, and select 'Update driver'. Choose 'Browse my computer for drivers' and navigate to the unzipped driver folder to complete the installation.

What should I do if my TL-WN851ND is not detected by my computer?

Ensure that the card is properly seated in the PCI slot. Restart the computer and check the Device Manager for any hardware changes. If it still isn't detected, try another PCI slot or test the card in a different computer to rule out hardware issues.

How can I improve the wireless signal strength of my TL-WN851ND?

To improve signal strength, position your router in a central location and away from obstructions. Update the driver to the latest version and consider using a Wi-Fi extender or changing the wireless channel on your router to reduce interference.

Why is my TL-WN851ND showing limited connectivity?

Limited connectivity can occur due to incorrect IP settings. Check your network adapter's properties to ensure it is set to obtain an IP address automatically. Restart your router and computer, and verify that there are no DHCP conflicts.

Does the TL-WN851ND support Windows 10?

Yes, the TL-WN851ND can support Windows 10. However, you may need to use the Windows 8.1 drivers in compatibility mode. Download the drivers from the TP-Link website and install them using compatibility settings if necessary.

How to uninstall the TL-WN851ND drivers?

To uninstall the drivers, go to Device Manager, locate the network adapter under 'Network Adapters', right-click on it, and select 'Uninstall device'. Confirm the uninstallation and restart your computer.

What frequency bands does the TL-WN851ND operate on?

The TL-WN851ND operates on the 2.4GHz frequency band, which is suitable for basic internet tasks and offers a good range.

How can I secure my TL-WN851ND wireless connection?

To secure your connection, access your router settings and enable WPA2 encryption. Set a strong, unique password for your Wi-Fi network and ensure your network's SSID is not publicly broadcast if not necessary.

Can the TL-WN851ND card be used on a Linux system?

Yes, the TL-WN851ND can be used on Linux systems. Most modern Linux distributions have built-in support for this card. If needed, additional drivers can be installed from the distribution's repository or through the NDISWrapper.

What should I do if my TL-WN851ND connection keeps dropping?

If your connection is dropping, check for interference from other devices or networks, ensure your drivers are updated, and try changing your router's wireless channel. Additionally, consider moving closer to the router or reducing the number of connected devices.