Cannot debug remote application

[RT_Instron]

Hi,

I seem to be having issues with debugging remote application and I am not sure what could be causing this.

I followed these instructions for setting up the exe to allow remote debugging: 

Remotely Debugging Executables in LabVIEW - NI

When using the 'Debug Application or Shared Library' window, I can find the exe on the remote machine, but when trying to connect to it, the connection hangs (see screenshot below). I cannot cancel the connection, close the window or use labview - I have to stop the remote application through task manager (closing through 'X' does not fully close it), after which I can use labview as normal on the host machine

The application itself on the remote machine seems to stop as well after attempting remote debug. I can press buttons but they don't do anything. If I then restart the application, it works as expected.

I then tried doing the same thing on localhost with the exe open locally. But I get a generic "Failed to connect to remote application".

I'm using LabView 64-bit 2021 SP1.

I also checked if the port was working by typing http://localhost:3580/dumpinfo? into the browser. Everything seems to be ok here as well, as far as I'm aware.

Has anyone come across this before?

Thanks very much for your time.

[Vazgen_H]

Hello, RT_Instron. What hardware do you use?

[thols]

I have the exact same issue. LV2020 SP1 works but not 2021 SP1. 

http://localhost:3580/dumpinfo? works 

Turning firewall off doesn't help.

If I create an empty test VI and build it with debugging enabled and connect to it I get:

I have followed this: Remotely Debugging Executables in LabVIEW

I

[Vazgen_H]

Ok, Can you show me your Project Explorer? 

[Vazgen_H]

Do you want to debug from PC the Real-Time Application, or you want to debug from one PC, to another PC project?

[Vazgen_H]

I checked with LabVIEW 2020 and LabVIEW 2021, It works. Now I am downloading LabVIEW 2021 SP 1 for test in this version.

[thols]

I don't know about the OP, but I just tried on the same PC. Attached buildable project.

[RT_Instron]

Thanks for getting back to me.

I'm trying to debug from one PC to another PC. So in terms of hardware, there's no additional NI hardware involved.

I tried doing the same thing as thols where I created a new project with a really simple VI with a while loop and set up the build spec to enable debugging. But I get the same result as in my original post.

Trying with exe on localhost: "Failed to connect to remote application"

Trying with exe on external computer: hangs on "Downloading NI_FileType.lvlib" until the remote exe is forced to exit.

Hopefully that helps. Please let me know if there's any info I can provide to diagnose the issue.

[Vazgen_H]

I tried remote debugging in LabVIEW 2021. It works great. Now I am downloading LabVIEW 2021 SP 1 for checking. 

[Vazgen_H]

Hi, I tried on LabVIEW 2021 SP1. The problem occurred. The first time I couldn't find the application, the second time couldn't connect.