Solution
If you switch your TestStand Adapter for LabVIEW from Development System to Run-Time Engine, then TestStand will create its own thread for each VI (they behave like two different executables then). To enable network stream communication between two different threads / executables on the same PC, you have to define a context in the URL syntax for each endpoint. It will look as such:
//host_name:context_name/endpoint_name
Complete the following steps to use a URL with this syntax to prompt a connection between two endpoints.
- Create a reader endpoint on the remote computer with the Create Network Stream Reader Endpoint function, as shown in the following figure.

- Create a writer endpoint on the local host with the Create Network Stream Writer Endpoint function and specify the URL of the reader endpoint with the reader url terminal, as shown in the following figure.
