Translations:Optional settings/95/en
From LimeSurvey Manual
If you have mutiples installation on the same server, it can be more quick and easy to set different session name for each LimeSurvey instance. This can be need for IE11 in some condition (see issue 12083)
// Set the name of the session
'session' => array (
'sessionName' => "LimeSurveyN1",
),