Error 363507 - LabVIEW could not verify the authenticity of the server

[Con]

Hi,

Please see the attached vi. 

I can access the https site via internet explorer, enter the credentials and i get access. However i keep getting the following when i try from labview

Error 363507 occurred at LabVIEWHTTPClient.lvlib:POSTFile.vi:1

Possible reason(s):

LabVIEW: LabVIEW could not verify the authenticity of the server.

Complete call chain:
LabVIEWHTTPClient.lvlib:POSTFile.vi:1
HTTPPostTest.vi

Even if i put the wrong credentials i get the same error so it doesnt matter what credentials are used. 

Could someone help please?

[Con]

In addition, if I disable the "Verify Server" flag, it still trys to authenticate and I get the same error. Why is this?

[Esteban.R]

Hi Con

It seems that we are getting the error because LabVIEW is not able to communicate with the page or server. I get the same error on my computer. Do you get the same error if you run one of the LabVIEW examples or another example? Or do you only get this error with that url?

Community: Easy HTTP Client VIs

Regards

Esteban R.

[Con]

When i try to connect using a http post test server https://posttestserver.com i dont have any issues. 

I thought it may have something to do with the Certificate signing authority, but the certificate authority I find when I access the URL via a web browser is listed in the Labview ca-bundle.crt. 

So it is most definitely related to that URL. If only I could see what is going on in the HTTP Post.vi!!

[Con]

A collegue of mine can connect to the URL via .NET by setting the security protocol type to SSL3.

Does Labview support SSL3?

[Esteban.R]

Hi Con

Did you try to run any of the LabVIEW examples in order to check if it might be something related to web page or the code?

It seems that LabVIEW supports .NET but I have not been able to find information about if it is supported or not. As in this case LabVIEW is using windows services I think that it should be supported but I am not completely sure.

Using .NET with LabVIEW - LabVIEW 2012 Help

Regards

Esteban R.

[Con]

Thanks Esteban,

Where can I find these examples? So far I have not found in examples in LV12 for http post.

[Jordan-G]

Hi Con,

I would recommend using the LabVIEW examples from this Community page as a way to get started using HTTP Post.

Regards,

Jordan G.

[Con]

Still battling with this.

Using the Easy HTTP vi's I get the same error. 

Why is it when I turn off verify server it still tries to verify?!

[WenR]

Hi Con

This may be a silly question, but I think it’s important to check on this. The certificate file that you are using to access with the web browser, is it the same that you use when you attempt to get access using LabVIEW?  

Could you please verify if the LabVIEW version that you are working with is LabVIEW 2012 or 2012 sp1? 

Regards

Wen R