Problem was the web browser. Apparently there is something in Firefox 26 that the 620 doesn't like. I'm guessing the firmware is too old to support the newer browser. I was noticing licenses not being there, and some steps were being skipped by the WebUI.
Trying Safari 7.0.1 was much better - the file commit took much longer than that on Firefox.
One problem down, on to the next one! :-)
Thanks all!