After upgrade to UCS 5.0-2 I'm getting an alert every night via email saying: Checking NTP time failed: NTP CRITICAL: Offset unknown

Hi all,

since I have upgraded my system from UCS 4.4-9 to 5.0-2 I’m getting an email every night with the following alert:

Cron <root@SERVERNAME> run-parts /usr/share/univention-monitoring-client/scripts/
Checking NTP time failed: NTP CRITICAL: Offset unknown

What I have found out so far is that this script seems to be the culprit for this:
/usr/share/univention-monitoring-client/scripts/check_univention_ntp

The above script is then executing this (Nagios-) plugin:
/usr/lib/nagios/plugins/check_ntp_time

I’m a bit confused … Nagios? is it really still in use with UCS version 5?

Any hint for how to further troubleshoot or fix this would be much appreciated.

Thx and best regards
Thomas