Operations Manager 2012 R2 Report Server Install: The specified SQL Server instance is not valid

Operations Manager 2012 R2 Report Server Install: The specified SQL Server instance is not valid

Came across this error on the “SQL Server instance for reporting services” page, when trying to install the reporting server for Operations Manager: The specified SQL Server instance is not valid. I was installing the report server on a separate server, which means i had SSRS installed on the server and pointed to the SCOM DW. […]