Hello colleagues, In addition to what David said (we are trying together to solve the problem and visited the customer on site). The MES system requires this Security Policy , and we tested it on the OPC UA Expert from the server itself and no problem. The policy required by the MES System is Aes256-Sha256-RsaPss https://profiles.opcfoundation.org/profile/785 Do you know if it could be any problem with the default OPC UA certificate self generated by the CtrlX Controller?
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