RDP licenses are showing in License Manager at Windows Server 2008 R2 but Licenses not showing as issued

I am using windows 2008 R2 standard in work group . The licenses server & the session host server on the same server at windows 2008 R2 standard. I am having RDP license & device cal of windows server 2012 and activated the licenses at windows 2008 R2 standard. My problem is that the licenses are not showing " issued " in the license server but showing as available. no problem is being reported in the licenses diagnosis .The server is still in the grace period. No message or alert is appearing of grace period to the clients etc. Earlier I have to reformat the server due to this problem of license not issued after the grace period is over. So I am here by requesting to help me to over come this problem.