as part of a System Center Operations Manager (SCOM) installation, we also installed SQL/SSRS 2017. Reporting is working fine - I can grant AD users access to view the reports directly via http://reportserver/reports. only when I try to grant an AD group rights, it fails with the message 'The user or group name 'NAME' is not recognized. I tried granting rights to all 3 types of security groups (Local Domain, Global, Universal) and all 3 types fail. the fact that I can add a DOMAIN\username AD-user means that SSRS can connect to AD, so I am puzzled why groups cannot be added ?!??!? ![72416-image.png][1] [1]: /answers/storage/attachments/72416-image.png

