mw1448.mgmt is a special case and alerting in Icinga.
It reports its own management IP as 0.0.0.0.
[mw1448:~] $ sudo /usr/sbin/bmc-config -o -S Lan_Conf ... IP_Address 0.0.0.0
This results in Icinga alerts "DNS CRITICAL - expected '0.0.0.0' but got '10.65.1.26'"
https://icinga.wikimedia.org/cgi-bin/icinga/extinfo.cgi?type=2&host=mw1448.mgmt&service=DNS
In T293610 we had the same kind of alert and the issue was fixed by replacing the mgmt cable.
Can you check mgmt cable and or health of the DRAC, please?