LabVIEW 2026Q1 Web Server Issue

[jyoung8711]

I installed LabVIEW 2026Q1 Late last week when it showed up in NI Package Manager, and when I went to access the NI Web Server (configured through the utility, and accessed through localhost:80, rather than the typical login screen it's just a blank page:

If you look at the source or do an "inspect" where you would normally expect the login to be, it's still there, but it seems like something broken about it.  I tested this with a couple of browsers (chrome & firefox) as well as in incognito mode / not... same thing everywhere

[billko]

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@jyoung8711 wrote:

I installed LabVIEW 2026Q1 Late last week when it showed up in NI Package Manager, and when I went to access the NI Web Server (configured through the utility, and accessed through localhost:80, rather than the typical login screen it's just a blank page:

If you look at the source or do an "inspect" where you would normally expect the login to be, it's still there, but it seems like something broken about it.  I tested this with a couple of browsers (chrome & firefox) as well as in incognito mode / not... same thing everywhere

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I think port 80 is routinely blocked by firewall? Did it work before?

[jyoung8711]

This is just at localhost which is not usually blocked.

The "page" shows up (you can see the header)... just the login content is missing.  

I think there's also typically a menu in the upper left as well (though that might be blocked by the login)

Definitely not a firewall issue.

[jyoung8711]

Some additional info:

I went back and tested on a VM with 2025 Q3 on it... and the same error seems to be there.

The only "older" system I had handy was one with LV 2023 on it -- which is the build system I use, and the last place I properly tested the Web Server.  This one still behaves the way I'd expect: