Wi-Fi is a crucial component of business networking, especially in environments where it is the primary access method for client devices. A reliable and well-designed wireless LAN is essential to support operational goals and provide a positive user experience. However, achieving good Wi-Fi can be challenging, and there are several best practices that organizations should follow to avoid common problems and create a more positive Wi-Fi environment.
The first best practice is to consider the space requirements when designing a Wi-Fi network. In large or complex settings, it is important to install access points (APs) in areas where they will provide the best performance, rather than simply placing them in convenient locations. When APs are not properly placed, users are more likely to experience frustrations such as slow internet speeds or frequent disconnections.
To ensure that APs are correctly placed, it is recommended to leave WLAN design to trained professionals. These professionals use sophisticated modeling and survey software to create a design that aligns with operational goals. They consider factors such as the number of APs required to serve the expected device counts, the desired per-client bandwidth, and the need for external antennas. Additionally, Wi-Fi heat map software can be used to visualize the strength of wireless coverage in an office setting.
Another important practice is to design Wi-Fi networks based on their specific purposes. Different network purposes may require different designs and AP placements. For example, a Wi-Fi network that provides guest access will have different design considerations than a network that services point-of-sale terminals. The design should align with organizational policies, situational specifics, and operational goals.
Physical security is also an important aspect of AP placement. Different organizations have different security requirements, and there is no one-size-fits-all approach to AP placement and physical security. Some environments may require locking enclosures to prevent unauthorized access, while others may rely on security cameras or restricted access to protect APs. It is important to find a balance between security and practicality, ensuring that APs are both accessible for maintenance and protected from potential tampering.
Logical placement of APs is another consideration that organizations should take into account. Most wireless networks today serve multiple purposes and have multiple service set identifiers (SSIDs). Each SSID is associated with a specific virtual LAN and requires its own security configurations. Administrators must ensure that APs are properly administered on the network to facilitate the different services provided.
Segmenting APs for security management is a best practice to protect the network from unauthorized access. APs and other devices are typically managed in a tightly controlled IP address space, separate from the network used by client devices. This isolation helps prevent unauthorized access and ensures that only authorized administrators can reach and manage these devices.
Enabling cloud management for APs is becoming increasingly popular as more network services are being managed in the cloud. APs that are administered in private IP spaces still need a path to the internet, and IT teams can use network address translation or other resources to provide this access while maintaining security.
One potential challenge organizations may face is the presence of unwanted APs on the network. These rogue devices can cause interference and disrupt the Wi-Fi system for legitimate users. Organizations should have a policy in place to address these devices and regularly monitor the Wi-Fi spectrum for unauthorized signals. In dense WLAN networks, the placement of business LAN APs can help pinpoint rogue devices, enabling appropriate responses to prevent further incidents.
In conclusion, achieving good Wi-Fi requires careful planning and adherence to best practices. Organizations should consider space requirements, leave WLAN design to professionals, design Wi-Fi networks based on their specific purposes, address physical security concerns, carefully administer APs on the network, segment APs for security management, leverage cloud management capabilities, and have strategies in place to detect and respond to unwanted APs. By following these best practices, organizations can ensure a reliable and efficient Wi-Fi network that enhances productivity and user satisfaction.