Bad_InvalidTimestamp - The timestamp is outside the range allowed by the server | OPC UA Implementation: Stacks, Tools, and Samples | Forum

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Bad_InvalidTimestamp - The timestamp is outside the range allowed by the server

Deepali Ahirrao

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02/25/2020 - 06:23

When I try to connect to a discovery server I get following error. The OPC server is behind a Discovery server.

ServiceFault: Bad_InvalidTimestamp (0x80230000) "The timestamp is outside the range allowed by the server."

The discovery server is in Germany and I am trying to access using our client from India. What is the reason behind the error and how to resolve the error? We are using Java stack of OPC (opc-ua-stack-1.4.1.jar) in our client.

Randy Armstrong

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02/25/2020 - 12:12

It means the system clocks are out of sync. Timezone does not matter since the comparison is done using the current UTC time.

Deepali Ahirrao

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02/25/2020 - 22:56

Thanks, will check on that front.

I can connect using UaExpert, but get the above mentioned error from our client. Is it because of the way OPC java stack handles this?

Randy Armstrong

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02/26/2020 - 14:38

Not sure how the Java stack works but it should be putting the current UTC time into the request header.

Use wireshark to verify that the time is NULL or just wrong.

Deepali Ahirrao

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02/27/2020 - 22:00

The timestamp was not set in the request header. Setting that to current time, fixed the issue. Thanks for the help.

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