Adjust time for offline detection?

Which parameter do I need to change to extend the time period until a device is recognized as "offline"? And where to set it (user account, server, device)?

Regards,
Tom

There is no configuration for that on the server side, unless you use connection timeouts. Offline indicates that device is disconnected from the server.

OK, thanks. Then I will switch back to 1 Minute sending interval in idle mode.

Regards,
Tom