Scheduled Service Change: Managed Firewall maintenance
The firewalls will be rebooted two to three times during the maintenance window. The campus wired networks behind the firewalls will be unavailable for up to 20 minutes at different times as the firewalls are rebooted.
There is no workaround for this issue
On Sunday July 31, 2016, from 6:00am to 12:00pm, maintenance will be performed on the Managed Firewall service infrastructure.