One of Domain Controllers keeps every 10 or 40mins come up with this error, we have noticed some users have connection issues , some active sync blackberrys require to relogin in to there mail. HELP !!!!
Event ID: 21
"The Remote Desktop license server "SERVERNAME" does not have any remaining permanent Remote Desktop Services client access licenses (RDS CALs) of the type "Windows Server 2008 or Windows Server 2008 R2 : Per Device CAL (TS, RDS or VDI)". As a result, the Remote Desktop license server cannot issue RDS CALs of the type "Windows Server 2008 or Windows Server 2008 R2 : Per Device CAL (TS, RDS or VDI)" to the Remote Desktop Session Host server "10.181.1.124". To resolve this problem, verify that the Remote Desktop licensing mode configured on the RD Session Host server matches the type of RDS CALs installed on the Remote Desktop license server. If required, purchase and install additional RDS CALs as needed for this Remote Desktop license server.