B&R OPC UA Server "Mismatch of Endpoints returned by GetEndpoints and CreateSession"

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1

Hello,

we use the UnifiedAutomation .Net client to connect to the B&R X20CP0484 OPC UA server.
After updating of the client to version 4.1.0 it throws the exception “Mismatch of Endpoints returned by GetEndpoints and CreateSession” during the connection.

The workaround is to disable the check on the client side, and reduce the security of the communication. See https://forum.unified-automation.com/viewtopic.php?f=38&p=14511

Session.DisableEndpointValidation = true;

Any thoughts on how to solve the original problem on the OPC UA server side?

AR used: K4.93. The release notes for the L & M versions available today do not list this issue.

Thanks!
Pavel

3

Hi @Pavel_Khrebtov

Were you able to find a solution to your problem, or are you still looking for one? If no one has any ideas here, I recommend you reach out to your local B&R support channel.

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4

Hi @marcusbnr ,

The workaround is OK for now.
Thanks for the tip! I’ll ask B&R support at the next meeting.

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