I have a 100 machine license and ~60 machines on our network here.
If I do back to back IP range discoveries, I get multiple error msgs stating I have reached my 100 license limit (either with doing a file -> new or not).
Its like its adding the 2 scan together...
Dunno if this is a bug or a feature. But the only way I can do a re-scan of the same IP range is to close NEWT out and restart it.