[Dovecot] dovecot auth(default): Master request xxxx.xxxx not found

Hi,

Wondering if anyone could give some indication as to where to look for the cause of the following error messages. These error messages seem to occur at about the time when users are having problems logging in.

Jun 8 10:33:19 host dovecot: auth(default): Master request xxxx.xxxx not found

Using ldap for authentication and auth_cache is enabled, not sure if that matters.

Thank you!

-- Eric L. Sammons, RHCE