Section 5 - Troubleshooting

2. The computer does not recognize the DWA-645 Wireless Adapter.

Make sure that the DWA-645 Wireless Adapter is properly seated in the computer’s cardbus slot.

If Windows does not detect the hardware upon insertion of the adapter, make sure to completely remove drivers that were previously loaded.

3.The computer with the DWA-645 installed is unable to connect to the wireless network and/or the Internet.

•Check that the LED indicators for the broadband modem are indicating normal activity. If not, there may be a problem with the broadband connection.

•Check that the LED indicators on the wireless router are functioning properly. If not, check that the AC power and Ethernet cables are firmly connected.

•Check that the IP Address, subnet mask, gateway, and DNS settings are correctly entered for the network

•In Infrastructure mode, make sure the same Service Set Identifier (SSID) is specified on the settings for the wireless clients and access points. The SSID factory default setting for D-Link products is dlink.

(Double-click on the WLAN icon in the taskbar. The Link Info screen will display the SSID setting.)

•In Ad-Hocmode, both wireless clients will need to have the same SSID. Please note that it might be necessary to set up one client to establish a BSS (Basic Service Set) and wait briefly before setting up other clients. This prevents several clients from trying to establish a BSS at the same time, which can result in multiple singular BSSs being established, rather than a single BSS with multiple clients associated to it.

D-Link DWA-645 User Manual

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D-Link manual Computer does not recognize the DWA-645 Wireless Adapter
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DWA-645 specifications

The D-Link DWA-645 is a wireless network adapter that integrates advanced features and technologies to provide reliable and high-speed connectivity for users. This dual-band wireless card is designed specifically for laptop users, offering seamless access to both 2.4 GHz and 5 GHz frequency bands, which minimizes interference and enhances the overall performance of your network connection.

At its core, the DWA-645 utilizes 802.11n wireless technology, enabling users to achieve data transfer rates of up to 300 Mbps. This capability is particularly beneficial for tasks that require substantial bandwidth, such as streaming high-definition videos, online gaming, or large file downloads. The adapter is backward compatible with earlier Wi-Fi standards, ensuring seamless connectivity with older network devices without significant loss of performance.

Another hallmark feature of the DWA-645 is its MIMO (Multiple Input Multiple Output) technology. This innovative approach employs multiple antennas to transmit and receive data, effectively multiplying the capacity and range of the wireless connection. As a result, users can enjoy a more stable connection even when situated far from the router or in environments with multiple obstructions, such as walls and furniture.

Security is a vital aspect of the DWA-645, which comes equipped with robust security protocols, including WPA and WPA2 encryption. These features help protect sensitive data from unauthorized access, safeguarding personal information and ensuring a secure browsing experience.

The installation process for the DWA-645 is designed to be user-friendly. With setup wizards and drivers that are easily accessible, users can quickly configure their adapter to connect to existing networks. Additionally, the device uses a compact design, making it a suitable choice for users who need a portable solution that fits neatly within their laptops.

Compatibility is another strength of the DWA-645, as it works seamlessly with various operating systems, including Windows Vista, XP, and 7. This versatility enhances its usability, allowing it to cater to a wide range of user needs.

In summary, the D-Link DWA-645 wireless adapter combines high-speed connectivity, advanced MIMO technology, robust security features, and ease of use, making it a reliable choice for anyone seeking enhanced wireless performance for their laptop. Its ability to operate on dual bands sets it apart, providing a solution that adapts to the ever-evolving landscape of wireless networking.
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