I have just upgraded my authenticated installation from 12.01.4165 to 12.01.4301 (the latest EBF I can find in my SAP account).
Since upgrading, when I execute the 'set temporary option connection_authentication' statement it fails with the error 'Authentication failed' (SQLCode -218).
I've been using the same authentication key for years through countless upgrades and EBFs without this happening before and I can't see anything in the release notes that mentions any relevant behaviour change.
Is this a known problem? Is there anything else I need to do following the installation of 12.01.4301 to get my authentication key working again?