Using fnm in an air-gapped environment with access to artifactory does not work

[OMaxOe]

We would like to use fnm on our windows server in an air-gapped environment with access to artifactory, but we receive the following error message when I use fnm list-remote error: can't get remote version file: error sending request for url <artifactory-url>

Using following config in .bashrc:

eval "$(fnm env --node-dist-mirror=<artifactory-url> --use-on-cd --shell bash)"

Our artifactory is reachable from the server and using fnm with the same configuration on our client machines with internet access works fine. Do you have an idea why it is not working?

Windows Server 2022 21H2
fnm 1.38.1