A network administrator noticed that all traffic that is redirected to the Cisco WSA from the Cisco ASA firewall cannot get to the Internet in a Transparent proxy environment using WCCP. Which trouble

Disabling WCCP removes the redirection service entirely and does not provide diagnostic information about why communication is failing.

Explicitly pointing the browser to the proxy bypasses WCCP transparent redirection altogether and does not resolve or diagnose the underlying WCCP communication issue.

Pinging the WCCP device only verifies basic IP reachability and does not confirm whether WCCP service negotiation or packet redirection is functioning correctly.

Checking WCCP logs in debug mode via the CLI provides detailed information about WCCP negotiation, redirection assignments, and communication errors between the ASA and WSA. This level of logging reveals whether the WCCP service group is properly established, whether packets are being redirected correctly, and where the communication breakdown is occurring. It is the most direct and informative troubleshooting step for WCCP-specific failures.