800xA integration with 3rd party OPC server

Hello,

I am trying to integrate an OPC server to 800xA v6.0.3.2. I have created the generic OPC network in Control Structure and the service by the wizard to run in a connectivity server. The OPC server machine is joined to the existing 800xA domain. Since the AdvDsOpcConnector is launched by 800xA service user, I have changed the identity of the remote OPC server to this user.

I am able to make an upload in OPC network but when I enable the service, its status is going "initialize" and then back to "undefined". I observed in AfwAppLogViewer that during this time, actually three instances of AdvDsOpcConnector are run and stopped sequentially. Finally, I get the status of the service as 0x800706ba, which means RPC server is unavailable, although it is available. I can connect, browse and subscribe by both Matrikon and AdvDsOpcClient with no errors when I log in to this connectivity server as service user.

Based on the information above, it seems to me that the firewall and DCOM settings are all ok. I also have checked with Advosol OPC Security Analyzer, and have not seen a serious issue. There must be something I miss. I appreciate any comments.

PS: For checking RPC, I run the following command in powershell and get a result.

"Get-WmiObect Win32_ComputerSystem -ComputerName [computer name]"

Thank you,

Gokhan