Hello i have a windows server 2012 standard edition licence that i have taken on rent from an ISP.

i have created a domain controller on that.

By default only two users can use remote desktop to the server simultaneously.

My Requirement is 20 users can use remote desktop to the server at the same time.For that i have purchased 20 Delive CALs licences like volume licencing.
i have the licence number noted on the paper.

do i need to install remote desktop services first etc ?

Could anyone guide me step by step how can i install or configure so that 20 users can use remote desktop on the same time.

You need to deploy remote desktop licensing service and register your CAL pack there. To install RDS licensing, start server manager, start add roles wizard, choose Remote Desktop Services. On the Role Services page, select Remote Desktop Licensing.

See Overview of Remote Desktop Licensing for more info.

Thanks

i have tried.

i have clicked on add roles --->Remote Desktop Services---->Quick Start--->Session Based Desktop Deployement

After it shows

the following roles will be installed

RD COnnection Broker

RD Web Access

RD Session Host

After click install

under Remote desktop Services role services its written that unable to install the role services.

If you search TechNet you will find that what you are trying to do is not really a recommended configuration and it seems to have some issues in getting it to work properly.  To start with, providing end users access to a domain controller is considered a particularly bad practice - that is generally why not too many people have a configuration like you are trying to set up.

When you say "have a windows server 2012 standard edition licence that i have taken on rent from an ISP", what do you mean?  Generally an ISP will grant you access to a VM or physical server, but they are not transferring the license to you.  If you did have a physical server, and you did have a standard edition license, you could set up Hyper-V on the physical server and create two VMs.  The first would be your domain controller and the other would be the server to which you want to grant RDP access and on which you would set up your RDP environment.

Hi,

Any update about the issue?

I would agree with others, you need to install Remote Desktop Services Client Access Licenses.

There are three methods by which you can install Remote Desktop Services client access licenses (RDS CALs) onto your license server:

Install Remote Desktop Services Client Access Licenses Automatically

Install Remote Desktop Services Client Access Licenses by Using a Web Browser

Install Remote Desktop Services Client Access Licenses by Using the Telephone

https://technet.microsoft.com/en-us/library/cc725890.aspx?f=255&MSPPError=-2147217396

Then you can install both Per User and Per Device CALs onto the same license server.

Regards.