OPC Errors on multihomed client|Classic OPC: DA, A&E, HDA, XML-DA, etc.|Forum|OPC Foundation

Hello, I have an OPC client (DCOM) running on a windows server 2008 machine which has 2 IP addresses on the same NIC i.e., multihomed NIC using the advanced configuration properties of the Adapter.

Both IPs belong to the same Subnet.

The OPC Server has only one IP address.

Occassionally, I face error 0x800706BA (some times other errors as well) and the data is lost for some time.

I have researched on the internet and ensured that the DCOM port 135 is open for communication on both ends. All settings, OPCEnum etc are running fine. Also, the error isnt permanent and appears intermittently.

Any help/guidance would be helpful.

Thanks