When troubleshooting established clientless SSL VPN issues, which three steps should be taken?

When troubleshooting established clientless SSL VPN issues, which three steps should be taken? (Choose three.)
A. Clear the browser history.
B. Clear the browser and Java cache.
C. Collect the information from the computer event log.
D. Enable and use HTML capture tools.
E. Gather crypto debugs on the adaptive security appliance.
F. Use Wireshark to capture network traffic.