Upgrade CS1798/17916 firmware to V1.2.115 or later should solve the issue.

 

To upgrade the firmware, please download the firmware and manual from 

https://www.aten.com/global/en/supportcenter/downloads/?q=CS1798

Please check the manual of CS1798/17916 for how to upgrade firmware.

If the issue persists, please contact our Tech Support for assistance.