cannot Write with sourceTimestamp on OPC UA server

[lwallet]

Hello,

We are facing an issue writing from an OPC UA client (OPC UA Toolkit VIs from LabView 2018 SP1) to the WinCC OA OPC UA server (v3.16, patch 20).

-The issue is the following :

The client can read values but not write on the server.
The client tries to write "timestamped" values (with sourceTimestamp) but the requests are rejected by the OPC UA server with the following error message : BadWriteNotSupported

Please find attached a wireshark capture showing a good message on the left (no sourceTimestamp - from UaExpert Client) and a bad one on the right (with sourceTimestamp - with Labview 2018 SP1 client)

Could you please let us know if the sourceTimestamp is supported by the WinCC OA OPC UA Server ? Any specific configuration on the server side is needed ?


Thank you for your help,