The departmental dhcp server will be down for a needed reboot to activate changes delivered by some RHEL patches.
Though the scheduled downtime is 6:30am to 7:00am, we expect actual downtime to be less.
UPDATE
[2019-04-11 06:31:23 | mark kriatchman]
The dhcp server is back up. Maintenance has been completed.
Resolved as of 2019-04-11 06:31:00