When things are working properly, if a user logs on you should see their license issued >as you do now in RD Licensing Manager, and you should see the RD licensing attributes on >their user account object. What I would recommend is to first grant the >necessary permissions in AD, and then you can rebuild the database to clean things up. This can be happen if the license attributes are not able to be updated on the user >account object due to lack of permission. Windows RD Licensing: Double license from uppercase and lowercase user name Your license server is now ready to start issuing and managing licenses.Hi this is a known issue if the license-server does not have the proper permission to update the AD-Attributes Make sure that Start Install Licenses Wizard now is not selected (we'll install the licenses in a later step), and then click Next.Optionally enter any other company information (for example, email and company addresses), and then click Next.Enter your company information (your name, the company name, your geographic region), and then click Next.For the connection method, select Automatic connection (recommended), and then click Next.

Right-click the license server, and then click Activate Server.Open the Remote Desktop Licensing Manager: click Start > Administrative Tools > Remote Desktop Services > Remote Desktop Licensing Manager.Configure the domain - select Configure a discovery scope for this license server, click This domain, and then click Next.Select Remote Desktop Licensing, and then click Next.Select Remote Desktop Services, and then click Next, and then Next on the Remote Desktop Services page.

Click Next on the first page of the roles wizard.

In Server Manager, click Roles Summary, and then click Add Roles.

Sign into the server you want to use as the license server using an administrator account.

You can activate the license server by using the Remote Desktop Licensing Manager.

The Remote Desktop Services license server issues client access licenses (CALs) to users and devices when they access the RD Session Host.

Rds licensing manager