8.3 A Site Shows Stale or Unreachable
On the Websites list, each site carries a connection status. Two of them mean the site isn't checking in cleanly.
Stale
The plugin hasn't checked in recently, but the site isn't known to be offline. This usually clears itself the next time the plugin runs its capability check on WordPress's update schedule. To nudge it, visit the site (so WordPress cron runs) or trigger an update check from the site's admin.
Unreachable
Tangible Cloud's attempts to reach the site are failing, or the plugin is reporting consistent errors. Check that the site is online and the Tangible plugin is still installed and active.
See Connection Status for the full definitions.