A network engineer has identified clients who are experiencing delays white roaming. The network is configured with WPA2-Enterpnse. AES encryption, 802 1X authentication, and Cisco Centralized Key…

Cisco Centralized Key Management (CCKM) is a Cisco proprietary fast roaming technology designed to reduce roaming delays by allowing clients to quickly re-authenticate with new access points without a full 802.1X exchange, provided the client supplicant supports this feature.

Enabling both AES and TKIP encryption (mixed mode) is generally discouraged due to security vulnerabilities and performance issues with TKIP, and it does not directly address roaming delays caused by re-authentication.

Disabling client session timeout is not a security best practice and does not resolve roaming delays caused by the re-authentication process itself, only extending the period of association.

While up-to-date wireless device drivers are important for general client performance, installing Cisco-specific drivers does not directly address roaming delays caused by 802.1X re-authentication when CCKM is already configured on the infrastructure side.