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Tran authentication failed

Miguel

I got a issue in our Citect SCADA 2018 Client.

The other Clients are connected to the Primary IOServer1 but one of them are connect to the Standby IOServer2 because can´t find IOServer1 and give us a error message "Tran authentication failed"

Please, give me a feedbak about this issue and possible solutions.

  • It appears to be a network related issue. It is worth trying the followings

    • Take a look at the syslog files of both trouble client and IOServer1 machines. There should be some messages logged on both sides for the attempted connections.
    • On the client machine, launch PowerShell command window and execute Test-NetConnection -computer x -Port y where x is the IOServer1 machine name or IP and y is the port number of IO server configured in your project. If the test connection is successful, you should review the project setup.

  • In addition to   recommendation below, make sure that project running on the client and server is the same, that the shared Server secret is the same on all nodes.

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