Your license server has AutoCAD 2012 and Building Design Suite 2012 network licenses. Some of your workstations have have AutoCAD 2012 installed using the default AutoCAD product key (001D1).
When trying launch AutoCAD 2012 and you have run out of the base AutoCAD licenses, it will not license or cascade to the Building Design Suite 2012 Standard, Premium or Ultimate licenses.
You may receive the following errors:
In order to resolve this issue, install AutoCAD 2012 from the Building Design Suite media using the Building Design Suite 2012 Product Key. AutoCAD with the Building Design Suite Product key will be able to use a license from AutoCAD or the Building Design Suite license packages that are on the license server.
Products: AutoCAD;Building Design Suite