Hello,
Thank you for posting in Microsoft Q&A.
Based on the description, I understand your question is related to RDP failed to server with Connection Broker services installed via Netscaler.
Try check the RDP configuration is correct and that the Connection Broker settings are properly configured. And the Connection Broker settings are correctly configured. Check the Citrix Netscaler is correctly configured to handle RDP connections with Connection Broker services.
Check the load balancing settings are correctly configured. Issues with load balancing may cause problems with RDP connections when using Connection Broker. Also, check session redirection is correctly configured.
If these steps don't resolve the issue, you might want to consider reaching out to your network administrator or Citrix support for further assistance.
Have a nice day.
Best Regards,
Molly
============================================
If the Answer is helpful, please click "Accept Answer" and upvote it