Autocad LT 2017 script errors when loading drawings from network drive

Hello
Further to other posters who have had AutoCAD 2017 present them with two script errors when loading, I'm also getting this, but in a different circumstance.
If I load the drawing off a local disk it works fine, if I load it off a mapped network drive then it hangs on the license check, then presents the two script errors as attached. Whatever is chosen from here AutoCAD hangs. AutoCAD also creates a folder in the same location as the network drawing with three javascript files in (as referred to in the script error box).
This has all been installed onto a fresh Windows 10 Pro PC. I've tried removing AV/AutoCAD and re-installing. I've also tried the other remedies for similar issues to no avail. Can anyone shed any light on this?
I have other computers running AutoCAD 2017 without issue so this isn't a general problem...
rob