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No listeners condition is detected over visa::/remote

Simple VI, writes *IDN?\n, reads the response, using visa write/read.

Works fine on local system with GPIB::nn::INSTR.
Fails  on remote system with:

  Error -1073807265 occurred at VISA Write in test.vi
  Possible reason(s):
  VISA:  (Hex 0xBFFF005F) No listeners condition is detected (both NRFD and NDAC are deasserted).

Only change to the VI is that the resource (selected from the pull down menu choices) is preceded with visa://host/.

On that same remote system, it works from MAX.

Looking at the trace, the write call shows up and gets an error.

What is wrong?


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