XenApp 7.6 VDA becomes unregistered periodically and need to restart the Citrix Desktop Service EventID: 1024. The Citrix Desktop Service is attempting registration with the delivery controller too rapidly. Event log messages about these attempts will be suppressed until the repetition has stopped for at least 10 minutes. [Expected Behavior] Enable VDA unregistered unexpected issue.

Hotfix BrokerAgent760WX64002 - For Broker Agent 7.6 for Windows OS (64-bit) - English

Problem Cause

1. VDAs can become stuck in the initializing state of the registration process. The issue occurs after the Citrix Desktop Service runs for several days without being restarted.
   [From BrokerAgent760WX64001][#LC0570]

1. If a Version 7.6 VDA is a member of a XenDesktop 5.6 site, when users connect, disconnect, and then try to connect again, the reconnection attempt fails and the VDA is unregistered.
   [From BrokerAgent760WX64001][#LC1859]