@grape4314 i do believe various Uni’s firewall config/security measures could impact the connectivity. that said, local nucleus/localhost may not be necessary depending on your use case. for example, if you are only planning to do work locally and not have to livelink or multi-user sessions, you could probably do without one.
could you provide the full log in case the mods/devs could examine further? because there could also be other factors like use of special characters and the such:
Minor changes to your network and local security protocols could impact your ability to access your “localhost” directly, yes.
Let me start off in a broader context here. Nucleus local / workstation, is now Legacy and will be discontinued. We encourage people NOT to use it now. So before we try to fix it, let me ask you why you are using it?
The only reason would be for live workflow or using some of our older connectors. Ideally you uninstall it and Launcher completely and move over to the new workflow. Launcher free, Nucleus free.
If you want to move off Nucleus workstation and Launcher, and download the very latest versions of Composer and Isaac Sim, follow this guide
1. Download "git" from https://git-scm.com/downloads
2. Download "git Large File Storage from https://git-lfs.com/
3. Start a windows command console by using running "cmd" from the Windows Start menu
4. Navigate to the root of c: or d: drive. Example "cd\"
5. Copy and run "git clone https://github.com/NVIDIA-Omniverse/kit-app-template.git"
6. run "cd kit-app-template"
7. run "repo template new"
8. run "repo build"
9. run "repo launch"