SYMPTOM
Using Strategy Web, Report Services documents can be configured to automatically refresh as described in KB44946 - Document Auto-Refresh in MicroStrategy Web 9.4.0 .
Automatically refreshing documents will maintain the user session alive until the browser is closed. The issue described here leads to users leaving a document to automatically refresh over several hours or days will encounter a login prompt to re-authenticate.
CAUSE
This issue might be caused by Microsoft IIS application pool recycling. By default, IIS recycles the Strategy Web application pool every 1740 minutes. When the application pool is recycled, all currently active sessions are lost and users are required to re-authenticate.
ACTION
Disable application pool recycling using IIS Manager:
1. Navigate to Application Pools > StrategyWebPool > Advanced Settings (via context menu or right-hand side toolbar)
2. Set "Regular Time Interval (min) to 0
