Error 1379 in Open Application Reference

[Henrique Menarin]

I have a VI server running in a executable made in LV8.0. When I try to
Open Application Reference in a client in LV8.0, I get the error 1379:
LabVIEW: The user failed a security authentication check.
I worked a long time with the same server in an executable of LV6, and
I can call it from the same LV8.0 I was using to test my new server. It
works fine.
Somebody knows if I have to allow access to the RT application, or
something like that?
I'm using Windows 2000 NT Professional, SP4.

Thanks,
Henrique

[Chris_Cilino]

Henrique,

Make sure that you have allowed access to your VI server. You can do this by going to tools>>Options>>VI Server Machine access, and VI Server: Exported VIs. Try adding a "*" (no quotes) to the list and see if that helps. Also make sure you don't have a firewall that could be blocking communications. Lastly, Make sure you are using the most recent version of RT and LabVIEW. Post to let us know!

Chris C

[jlokanis]

Swap your network cables.  LabVIEW VI Server binds itself to the first network card it sees and will not talk to your second card.  So, make sure the the remote machine you are talking to can be reached via the first network card listed by Windows.

This is definily a bug in VI Server but I don' think NI has any plans to fix it.

-John

[Jaggs1]

We had the same problem!  The solution was to install NI Device Drivers (3 CDs) on the server computer.  It solved the problem.  We were using LabVIEW 8.5.  The device drivers may contain some NI security libraryfiles.