Licenses are not available for the remote desktop host session server error

Hi All,

I installed the RDS server 2016 and activated the license but still it is giving error in RD license diagnose " Licenses are not available for the remote desktop host session server"

error details:

The Remote Desktop Session Host server is in Per Device licensing mode and No Redirector Mode, but license server localhost does not have any installed licenses with the following attributes:
Product version: Windows Server 2016

Thanks,

Agha