Introduction

This serves as a central location for common Citrix License Server troubleshooting articles authored and vetted by a group of Citrix subject matter experts in this area.

Overview of the Issue

Provide a brief yet comprehensive overview of the issue, outlining the common challenges and key points that will be addressed in detail in the linked content.

Troubleshooting Common Problems

• Citrix Director Displays "In Supplemental Grace Period Time until grace expires": 

https://support.citrix.com/article/CTX220833  

• Delivery Controller cannot get License Server site information:

https://support.citrix.com/article/CTX235229 

• Vendor Daemon down on License Administration Console:

https://support.citrix.com/article/CTX200151 

• How to troubleshoot License Server connectivity and grace period issues:

https://support.citrix.com/article/CTX235237 

• System clocks are not synchronized:

https://support.citrix.com/article/CTX235232 

• Citrix Licensing service is not running or properly installed on the License server:

https://support.citrix.com/article/CTX235518 

• CITRIX.opt file is not present on the License Server:

https://support.citrix.com/article/CTX235233 

• SA alert message in the License Administration Console or XenCenter: stating Subscription Advantage is expired/expiring

https://support.citrix.com/article/CTX105816 

• Citrix License Server certificate is not in DDC's trusted root store:

https://support.citrix.com/article/CTX235235 

• Event: 1050 Connection validation failed on domain for user for reason 'Deny': 

https://support.citrix.com/article/CTX237472 

Tools and Resources

• Steps to Collect License Server Logs: https://support.citrix.com/article/CTX127314 
• Citrix License Server independent installer download page: https://www.citrix.com/downloads/licensing/ 

FAQs 

•    Citrix Licensing FAQs: FAQ eDoc link