I have a question regarding OPC Connections with an OPC UA Server.
I am able to have a Secure Connections with Security Options : Basic128Rsa15 - Sign&Encrypt and Basic256 - Sign. and with Anonymous or Credentials
I have a problem with Security Option : None - None. with Anonymous and Credentials
Your client send a CreateSesion Request to my Server with those Security Option. My Server send the CreateSessionResponse with StatusCode : Good but with the ServerCertificateField empty.
Then your client Close immediately the SecureChannel.
The OPC UA Specification 1.02 say “If the securityPolicyUri is NONE and none of the UserTokenPolicies requires encryption, the Server shall not send an ApplicationInstanceCertificate and the Client
shall ignore the ApplicationInstanceCertificate.”
So my question is : Is Ignition always looking for a Certificate in the ApplicationInstanceCertificate field of the CreateSessionResponse or is the error coming from something else ?