Our Users recently started getting popup error messages that say "external LDAP auth failed." The users get this when they are logged in. It seems to have every five minutes and only happens with about 10 users. I've had them logout and log back in but the errors keep popping up. This is what it shows in the maillbox log.

SoapEngine - handler exception: authentication failed for CHANGEDUSERNAME external LDAP auth failed, [LDAP: error code 49 - Invalid Credentials]

Everything seems to be running fine on the OpenLDAP server.