- Added check to not attempt auto update if time sync is needed and not yet successful (delays 30 second to recheck).
- Added resync of time when DHCP or link state changes if online
- Added conditional* fallback from configured* NTP servers to the IP-named NTP servers, and then to the DNS named ones if that fails
- Added conditional* fallback from the configured* HTTP servers to the default DNS named ones.
- Uses the configuration* option for how many queries to run in parallel
- Added known static IPs for time servers (in case DNS resolution isn't up yet)
- Added time.cloudflare.com to fall-back NTP servers
* Note: The UI for configuring many of these things doesn't exist yet, but the defaults are reasonable
* fix(ntp): prevent panic on NTP query error and add IPv6 server in defaultNTPServers
* fix(ntp): make sure queryMultipleNTP finish if all servers failed