Settings in web.cfg (under NX_ROOT\bopcfg\www) are as follows:
Session times out in 30 minutes and "You have been logged out message" pops up, but Timeout warning is not displayed 5 minutes prior. Tested in Chrome, IE 11 and MS Edge
An existing defect was found for this functionality to impact Chrome based browsers
Release : 17.3 RU4
Component : SERVICE DESK MANAGER
Please contact support for the appropriate fix to download and install. A future RU update will include this fix.
With the update in place, please note that the following configurations are required: