Cisco Anyconnect Connection Error on Mac OS…
If you Receive the following error “The IPsec VPN connection was terminated due to an authentication failure or timeout.” Please follow these steps.
Open Keychain Access
Select ‘System’ which can be found in the menu displayed on the left hand side
Find “com.apple.kerberos.kdc” certificate and public key (there should be two duplicates of each of them)
Delete the first one and this will resolve the issue.