Hi,
no error…
NTP Time OK - Stratum: 3, Offset: 0.4600 ms, Reference ID: 59EA404D (89.234.64.77)
That’s the same I can see in the gui but the check is in stale state… 
Strange behaviour… after issuing the command on the cli the check is recovered from stale state… I guess after some time it goes back to stale…