Final answer:
To encrypt user credentials in a wireless network, use Wi-Fi Protected Access 2 (WPA2) or Wi-Fi Protected Access 3 (WPA3) with Advanced Encryption Standard (AES) protocol. Ensure network security features like network authentication and access control lists are configured properly.
Step-by-step explanation:
To ensure that the wireless network encrypts user credentials when users enter their usernames and passwords, the best solution is to implement a network that uses Wi-Fi Protected Access 2 (WPA2) or Wi-Fi Protected Access 3 (WPA3) with a strong encryption protocol such as Advanced Encryption Standard (AES).
WPA2 and WPA3 provide a secure way to protect user data and ensure that the communication between the user's device and the wireless access point is encrypted, thus protecting the user credentials during transmission.
Additionally, make sure to enable and configure the network's built-in security features like network authentication and access control lists (ACLs).