Daniel Xavier

> Try using the following combinations: `err := com.CoInitializeSecurity(com.RPC_C_AUTHN_LEVEL_PKT_INTEGRITY, com.RPC_C_IMP_LEVEL_IMPERSONATE, com.EOAC_NONE)` `err := com.CoInitializeSecurity(com.RPC_C_AUTHN_LEVEL_PKT_INTEGRITY, com.RPC_C_IMP_LEVEL_IDENTIFY, com.EOAC_NONE)` `err := com.CoInitializeSecurity(com.RPC_C_AUTHN_LEVEL_CONNECT, com.RPC_C_IMP_LEVEL_IMPERSONATE, com.EOAC_NONE)` `err := com.CoInitializeSecurity(com.RPC_C_AUTHN_LEVEL_CONNECT, com.RPC_C_IMP_LEVEL_IDENTIFY, com.EOAC_NONE)` `err := com.CoInitializeSecurity(com.RPC_C_AUTHN_LEVEL_NONE, com.RPC_C_IMP_LEVEL_IDENTIFY,...

Hi, it still hasn't worked, we're investigating what's going on. We have two systems, one in Delphi and one in C# and both work without changing the DCOM settings, but...

I still don't understand what's wrong with it not working.

Hello! Sorry for the delay, we are still trying to solve it, the libraries used for connection were those of the OPC Foundation and Kassl.de

> Does your system have multiple users? I can't tell you, but systems are generally one-to-one.

I was able to make the connection using the free Kassl.de DLL for testing with C++

Hello, I saw that in this C# library it can connect using comProxyBlanket, maybe that's what's missing https://github.com/juan-minopex/TitaniumAS.Opc.Client

Hello, here is the code I used that worked and returned the servers  

I did a test and just added this to the failed connection line of code: `return nil, errors.New(fmt.Sprintf("Connection failed %v", err.Error()))` And the feedback was very good: