In a CWA scenario, the user is redirected to the portal, authenticates, but the session is not transitioning from the 'redirected' state to the 'authenticated' state. What is the most likely cause?
Trap 1: The Guest user group is missing from the Policy Set.
The Guest user group governs guest access authorisation, not the CWA state transition, which depends on the client receiving the redirect and completing posture or authentication checks. It is tempting because group membership drives many policy outcomes, but a missing group would deny access rather than stall the state machine.
Trap 2: The Redirect ACL is applied to the wrong interface.
The Redirect ACL controls which traffic is intercepted for redirection, not the state transition after authentication. A misplaced ACL would prevent redirection entirely, leaving the user unredirected rather than stuck in 'redirected'. The authenticated state depends on the CoA/re-auth exchange between Cisco ISE and the WLC, so the failure lies there.
Trap 3: The portal URL is incorrect.
An incorrect portal URL would prevent the redirect reaching the login page at all, yet the user authenticates successfully, so the URL is demonstrably reachable. It is tempting because redirect failures often trace to URL misconfiguration, but that would break the initial redirect, not the post-authentication transition.
- A
The NAD is missing the 'aaa server radius dynamic-author' configuration.
Dynamic authorisation (CoA) lets the NAD accept change-of-authorisation packets from the RADIUS server. Without 'aaa server radius dynamic-author', the switch cannot process the CoA that moves the session from redirected to authenticated after portal login.
- B
The Guest user group is missing from the Policy Set.
Why it fails: The Guest user group governs guest access authorisation, not the CWA state transition, which depends on the client receiving the redirect and completing posture or authentication checks. It is tempting because group membership drives many policy outcomes, but a missing group would deny access rather than stall the state machine.
- C
The Redirect ACL is applied to the wrong interface.
Why it fails: The Redirect ACL controls which traffic is intercepted for redirection, not the state transition after authentication. A misplaced ACL would prevent redirection entirely, leaving the user unredirected rather than stuck in 'redirected'. The authenticated state depends on the CoA/re-auth exchange between Cisco ISE and the WLC, so the failure lies there.
- D
The portal URL is incorrect.
Why it fails: An incorrect portal URL would prevent the redirect reaching the login page at all, yet the user authenticates successfully, so the URL is demonstrably reachable. It is tempting because redirect failures often trace to URL misconfiguration, but that would break the initial redirect, not the post-authentication transition.