I've spent the weekend searching on-line
I upgraded to LibreElec 11.0.3 (clean install) on a mini PC (Prometheon ClassFlow - identical to the Zotac Mini Nano) on Friday and have been unable to install any add-ons from the official Kodi repostory; I've narrowed this down to what I believe to be a time sync problem.
Regional settings are correct in Kodi, but they reflect the INCORRECT time in LibreElec (which is 3 hours off - matching UTC time instead of my actual local time). When I run "connmanctl clock" over SSH it's showing the correct timezone but the last line shows "TimeserverSynced = False" (screenshot attached) and, if this is the issue as I suspect, I haven't been able to find a way to correct it.
Some guidance would be appreciated.