So, I had 2 issues - the second one was self induced trying to solve the first. My PG3 was totally MIA, and in attempting to do a simple reboot, I started the upgrade unknowingly, and then the entire EISY was MIA from my network. ugh.
Submitted a ticket and Michel assisted in getting me network access. I attached a monitor, keyboard and mouse directly to the EISY to do this. Once network connectivity was restored I was able to SSH into it. Lastly, Michel did a screen share and cleaned up the mess. Amongst other things, looks like I had logs that chewed up storage - not sure, as Michel was moving very fast.
EISY is up, Zwave is up, PG3 is up, and all good.
~jim