We are using a DB through IWP (Version 12). I have set the "Session Timeout" in the instant web publishing area to 59 minutes, but users are getting kicked out after only about 5-10 minutes of inactivity.
Have you read this guide?:
Chapter 2 (page 9) details setting of the timeout in the sharing options for IWP. Doing a find in the above PDF for "time out" finds soem other notes about time out rules in IWP as well.
My imagination says there is a setting you have missed somewhere.
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