Hello, @Victor C. Thank you for the advice. The case has been solved. It was because of the lack of license application. I created a task which applied KEA license to the machine and ran it, it started working. But I’m wondering why KEA license wasn’t applied automatically though its property “auto distribution” was on. Do I need to use license deployment task on each machine? By the way, I still have another problem on another device. KES 11.6 was installed without KEA. Created one task “component change” but the application to the device failed with error, but error details weren’t displayed. So I created a task which installs KEA only to the device and it went well Applied KEA license to the device.After all, the devices has KES11.6 installed, KEA installed and NA installed. But incident card displays ”Error wait ...” Actually Component change task fails and fails on this machine, so if this change works well everything gets OK I think. Do you have any suggestion for that? Sorry for too many questions. Thanks in advance. Yasutoshi Takayama