I tried again with virus, firewall and router firewall disabled and Live Update fails every time, it hangs or crashes to desktop at KLAS_TRIM_D.mdl.
What's the best way to remove KLAS as it seems to be that airport that is causing the issue and I would want to see if I can update to finish without that airport installed. If I uninstall via add/remove programmes will that stop live update from trying to access KLAS files from your server or do I need to disable it from the Addon Manager in P3D?
If you have time and other people are having similar issues I'd be happy to do a remote session if that would help.