Marius -
The likely failures that NI Package Manager will experience is a failure during download or a failure when validating checksum on a package before being installed. NI Package Manager does not have any high-level retry mechanisms, however, if an installation fails during an installation due to the above type of failures, a subsequent operation to install the software again will skip already installed packages and continue with the next not yet installed package.
FWIW, the following site lists NIPM errors: https://labviewwiki.org/wiki/NI_Package_Manager_Error_Code_Family You could search for the word "network" and you will see a handful of download related failure error codes.
I am not aware any any support for NI Package Manager first doing a download of all packages, and then install.
If you want to separate the download operation from an install operation, technically you can use nipkg.exe commands to register a remote feed (feed-add), and download all the packages to a directory (feed-download). To use the local feed, you would register that feed before installing. The downside to this is that the download operation will get all packages in the feed, which many of them might not be required depending on what you are planning to install.
Scott Richardson
https://testeract.com
