Getting error in powershell for get-rdserver command

Getting error when trying to run command in powershell. When i use same command in session host i can see results but whenever i try to run from connection broker itself i get error. We have single connection broker. We verified all required services are working fine.

Command : Get-RDServer -connection broker "servername" -role RDS-RD-Server -verbose -debug

Error : Get-Rdserver: The remote desktop managment service is not running on the RD connection broker server.