Hello.
for the rest of this discussion, I assume you are actually not seeing signs that the computer is being out of memory, correct?
In general, this error can come either from the client side (our component), or it can be generated by the OPC server and just transformed in the component. This is something we need to establish first. Can you please inspect other properties of the outer and inner exceptions, especially the "Source" and error codes, and let me know what is contained in them?
We may also have to put an OPC Analyzer in between the client and the server to determine this with certainty. But that's for later.
Regards,
Zbynek Zahradnik