SEPM12.1 with XP clients logging heavily in security log
Recently we installed SEPM 12.1 on the server and the clients have all since been updated. We predominantly use XP computers. What we are seeing is the security log is filling up with lot of eventID 577 and 526 with failures, whcih eventually stops users from loggin on to the PC until the log is cleared. Have I missed some setup which should not be logging this on the security log.