To enhance product capability, Trend Micro made changes on following maintenance:
- May 2023 Maintenance: Server/Agent Version 14.0.12518 (enabled new pattern update enhancement)
- June 7, 2023 Maintenance: Server/Agent Version 14.0.12571 (enabled new pattern update enhancement)
- June 19, 2023 Maintenance: Server/Agent Version 14.0.12585 (disabled the new pattern update enhancement as it was observed to cause increased network usage on some environment)
Due to these changes, if the Security Agent is currently using Build 12518 or Build 12571, it would fail to do pattern updates from Apex One Server running the latest build (12585).
This issue can be resolved by updating the Security Agents to Build 12585 (or later).