I'm defining the full address, with the server name, and directors, rather than the shared directory name.

I'm already running SSMS in administrator mode, however, that wouldn't solve the issue as the script won't be run from SSMS in the final solution.

I read something very breifly before I left work last week, that seems to imply it's to do with Kerboros, not something I'm familiar with. I'm researching into it, but if anyone reading this has some insight and thinks it could be the right path, please let me know.

Thanks