Session expires too fast in LiveUser

Hello, I have an problem with LiveUser. The Session expires to fast. So about after 10 min. the session is expired and the user will be smashed out of the application. May someone can help me to fix this problem. Following settings I do which are session related to instance LiveUser: 'authContainers' => array(0 => array( 'type' => 'DB', 'dsn' => array( 'username' => $this->dbsetup['username'], 'password' => $this->dbsetup['password'], 'hostspec' => $this->dbsetup['hostname'], 'phptype' => $this->dbsetup['type'], 'database' => $this->dbsetup['database'] ), 'loginTimeout' => 0, 'expireTime' => 3600, <---------- This should be the session exprire time 'idleTime' => 1800, <---------- This should be the idle time for the session 'allowDuplicateHandles' => 0, 'passwordEncryptionMode' => 'MD5' ) ) But why expires the session after about 10 min. Thanks in forward for all help. Cheers -Peter