Measuring Time not Valid

Event name	Measuring time not valid
Meaning	The time stamp received from the device (device time) is different to the system time (server time).
Case 1	Behavior	Only a single message. The difference between the device time and the server time < 1 minute
Possible root cause	A delay on the measuring data transmission. Service restart on server, server reboot, network issues.
Action	No reaction required, if this happens seldom and the system works further without any issues. In case the message appears too frequently: 1) Check the settings such as the service restart interval 2) Check the IT infrastructure
Case 2	Behavior	Only a single message. The difference between the device time and the server time > 1 minute
Possible root cause	The device has restarted and it was using the last known time stamp, which was stored internally
Action	No reaction required, if this happened after re-powering or re-pairing a device. In case message appears too frequently: 1) Check the IIS settings about the application recycle 2) Check the IT infrastructure
Case 3	Behavior	Consecutive messages every interval
Possible root cause	Device control crashed due to low power supply: 1) Low battery status. 2) Too low supply voltage in case of an external power supply. 3) The device is subjected to very low temperatures. 4) A device malfunction.
Action	1) Change the device battery. 2) Remove the device from the very low temperature environment and consider the use of an extension cable. 3) Check the external power supply.
Case 4	Behavior	The message appears for different devices at the same time and the device time on different devices are the same.
Possible root cause	The server time has been updated. The device time and server time will mismatch.
Action	Check the IT infrastructure. The server time shall not have big jumps