The Error Message is false, and has been present since NIPM was released for installation of LabVIEW 2017. It's a bug in NIPM that has nothing to do with Internet connection. It probably has nothing to do with your version of Windows. It may have something to do with your version of LabVIEW.
For what it is worth, I have successfully installed LabVIEW 2019 SP1 (32-bit) and added the LabVIEW 2019 myRIO Software Bundle several times. LabVIEW has always been a little tricky to install. I "took notes" (which I still have as a Word Document) on the proper order of installation from the CD/DVD collection era of LabVIEW 7, and became the "go-to" installer for my Department and the random BME student who found their way to my office.
The "trick" with NIPM installations is to "do it slowly". First, install only LabVIEW, no Modules or Toolkits, no Drivers, a minimal set of "additional Features" (or whatever that last step is called). Reboot. On successive rounds, add a Module or Toolkit (again, trying to avoid Drivers, and minimizing Additionals). Stick with only those items in the default LabVIEW download of VIPM. Eventually, add the Drivers. Now, if you need "something else" (like the myRIO bundle), add it after everything else is working.
Another "interesting feature" that NIPM appears to have created is that (at least sometimes) once it fails, the surest (and possibly only) way to fix it is to "start all over" -- remove all National Instruments Software from the PC, and then reinstall it all over again, using NIPM in the "safe-install" mode described above. Not only is this usually safe and successful, but it can also be faster, as "repairs" of NI Software installations include "package-at-a-time" removal of older versions that are being replaced by newer ones, and "all-at-once" removals are definitely faster than trying to "unthread" a single package from the Registry.
If you do decide to "start over", do your homework and search out the several descriptions of the (only!) safe way to remove NI Software. It is a several-step procedure that involves using Control Panel's "Add/Remove Software and Features" and NIPM, itself. It has been described on the Forums several times (including by me, but I don't have a link handy), and you should also be able to find instructions from NI by doing a Web Search. Whatever you do, I strongly recommend leaving the Registry alone -- three years ago I tried to "force-remove LabVIEW", and ended up backing up my files, reformatting my C: drive, reinstalling Windows and other software, reinstalling my files, and then reinstalling LabVIEW. What should have taken 2 hours took two days. And I did it twice (a Desktop and a Laptop, but I've avoided doing it a third time!).
Bob Schor
