FYI:
After my network re-config. I tried to reinstall and authorize SU.
It kept saying invalid licence.
Finally got this from Trimble:
"The user might be having an issue with the formatting in their email program (like outlook) changing the dash to a "bash" which looks the same, (my emphasis,) but SketchUp doesn't recognize it. Try typing it in vs copy/paste. Also, try pasting the whole license into the Advanced window."
Might have saved me a few hours of frustration if this info was to appear on the licensing t/shoot page