São Paulo IV (SAO4) Critical Datacenter Network Maintenance - zscaler.net, zscalertwo.net, zscloud.net
Incident Lifecycle
Incident Timeline
Investigating
Zscaler will be performing critical hardware maintenance in the São Paulo IV (SAO4) Datacenter.Maintenance window,Start: 2026-4-2 18:00 GMT-3End: 2026-4-2 22:00 GMT-3(i.e. 2026-4-2 21:00 - 2026-4-3 01:00 UTC)During the maintenance, traffic will failover to redundant devices in the same datacenter. However, intermittent connections and connection reestablishment may be observed.
Mar 30, 2026 at 7:28 PM UTC
Was your business affected by this Zscaler outage?
Set up instant alerts for Zscaler — be the first to know about outages via email, Slack, Teams, or Discord.