I don't have a script published - these are all Map, Geocode, Image, Feature Services.
I was able to publish a service - the EDN server has been isolated, same errors, no reference to the dev server anymore.
Strange thing is - today errors are still occuring in the GIS Server logs, but no more Event Viewer errors. We had Windows Updates applied, but could find no reference to which (if any) would have caused this.
All is back to NORMAL?!