Refer to the exhibit. You are troubleshooting an AP that fails to associate to a WLC. You view the debug output on the WLC. Which corrective action do you take?

WLCs primarily operate at Layer 3 to manage APs and clients, so explicitly 'setting' to Layer 3 mode is not a typical corrective action for association issues.

The CAPWAP protocol uses UDP ports 5246 (control) and 5247 (data), not 12222 and 12223; thus, enabling incorrect ports would not resolve the issue.

If the trunk ports are allowing too many VLANs, it can lead to excessive broadcast traffic or issues with Spanning Tree Protocol, which can disrupt the CAPWAP discovery process and prevent an AP from successfully associating with a WLC. Restricting the allowed VLANs to only those actively used by the WLC helps mitigate these network-level problems, ensuring a cleaner communication path for CAPWAP.

Converting an AP to autonomous mode changes its operational model entirely and would prevent it from associating with a WLC, which is contrary to the goal of troubleshooting the association failure.