Situation: when creating the new Edgesight SSRS solution the following changes had to be made to the SSRS server to allow the Edgesight to create folder, and upoad all its Reports etc

Solution:

Log into SSRS as Administrator
Click on site settings
choose security
add the necessary user (edgesiht admin account) as a system administrator…
Test link
Got to SSRS page
http://SERVER/Reports/Pages/Settings.aspx?SelectedSubTabId=SecurityLinkID
Log into SSRS as Administrator
Click on folder settings
choose security
add the necessary user as a Browser, Content Manager, My Reports, Publisher, Report Builder