TCPIP errors 63 and 66

[Barionics]

I am testing out a LabVIEW app which has a TCPIP interface. To test it I am attempting to send commands via the TCP from a test VI resident on the same machine. When running on my desk PC it works fine. However, on the test rig PC it refuses a connection and comes back with error 63 or sometimes 66, basically connection refused. I am connecting using the loopback IP 'localhost', although I have tried 127.0.0.1 and the PC's own address. Regarding VI server connections, I have checked that the settings are the same on both machines. I tried adding '*' to the machine access section to allow access from any PC, but no joy. Thanks in advance, Ian

[Barionics]

Re Firewall settings,  I turned off the firewall completely, and did a reboot, just to be on the safe side, but it made no difference at all.

[Barionics]

I found a spare e-net card fitted inside.  I removed it, but no effect unfortunately.

[elnaiem10]

Hi Barionics,

How are you getting along with this issue? If you are still facing this issue, refer to the following articles to troubleshoot the error that you are receiving:

• Error 63 When Using VI Server to Launch a VI on a Remote Machine - National Instruments
• Error 63 With the Host VI Generated by the Communication Wizard - National Instruments

Kind Regards

Elmunzir