The third step in setting up a wireless network in a small office is to configure the settings of your router and adapters. You should access your router's web interface, typically done by typing its IP address into a web browser, and log in with the default username and password; it's important to change this immediately for security reasons. The configuration should include the network name (SSID), which should be unique and descriptive, as well as the network mode, which should be the highest that your router and adapters support, such as Wi-Fi 6 or 802.11ax. Additionally, you need to select an appropriate channel that is not crowded or overlapping with other nearby networks, which can cause interference. To find the best one for your network, use a tool such as Wi-Fi Analyzer to scan the channels in your area. Lastly, choose the highest level of security that your router and adapters support, such as WPA3 or WPA2, and create a strong and complex password that is hard to guess or crack.