Hello, the warning is shown, because some attributes are not set. But this has nothing to do with the 4,5 to 5 minutes delay you mentioned. Inside the logfile we see, that your client reads every datatype and variable, that exists on the control. And this just takes some time. It might be helpful, if you could send us a Wireshark trace, that covers the startup/connection sequence of the client, but I guess we will see the same as inside the logfiles. You already mentioned that other clients are much faster when connecting to the ctrlX. I guess they don't read all datatypes and variable in advance. Is there a way to disable this behavior on FT Optix OPC UA client? Did you tried to connect with the FT Optix OPC UA client to a different OPC UA server?
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