A computing system may include a computing device configured to store and update published resource entitlements for a plurality of client devices. The system may further include a plurality of virtual delivery appliances configured to receive connection requests from the client devices, with the connection requests including a connection lease issued based upon the published resource entitlements for the client devices, request validation of the connection leases from the computing device, and provide the client devices with access to virtual sessions corresponding to the published resource entitlements responsive to validation of connection leases from the computing device. The computing device, responsive to validation requests from the virtual delivery appliances, may also compare the connection leases to the updated published resource entitlements and validate virtual session requests based thereon.