A customer with two Cisco 5520 WLCs that work as a primary and secondary had some switching issues and the primary controller lost connectivity. Immediately all APs went to discovery and joined the secondary controller. After recovering from the issue, the primary controller is online, but no APs return to it. All APs remain in the secondary controller. Which setting advises the APs to return to their primary controller?

Which UDP port numbers are used for exchange mobility packets in an AireOS wireless deployment?

Campus users report a poor wireless experience. An engineer investigating the issue notices that in high-density areas the wireless clients fail to switch the AP to which are automatically connected. This sticky client behavior is causing roaming issues.
Which feature must the engineer configure?

Guest anchoring is configured for a newly created SSID for your company. It has been noticed that the mobility tunnels are not up, and that MPING fails from your foreign WLC to the anchor WLC.
What is the reason that it is failing?

WLC SSO is set up between two WLCs in a service provider network serving public spaces. On WLC failover, it is noticed that only about half of the original client count is now showing on the secondary WLC, although it is currently showing the role as active.
Which design side case explains the issue?