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Outage in Zscaler

Brussels II Datacenter Issue

Resolved Minor
March 02, 2026 - Started 23 days ago - Lasted 15 days

Incident Report

Summary AI Generated

Zscaler's Brussels II datacenter experienced a service disruption affecting traffic on the zscaler.net and zscloud.net clouds due to faulty hardware. Users were advised to failover to secondary or alternate datacenters while experiencing traffic impacting issues. The incident was resolved after 352.4 hours once replacement hardware arrived onsite and was successfully swapped by Zscaler teams.

Zscaler has detected an issue with our Brussels II datacenter on the zscaler.net and the zscloud.net clouds, and is currently investigating the matter. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. For more information, please refer to the following support article. We will continue to provide updates here as the investigation progresses. For detailed updates, please check the Service Status section in your Zscaler customer support portal (CSP). Status changes and additional details will be posted there as they become available.Latest Update - Mon, 16 Mar 2026 13:08:40 UTCThe replacement hardware has arrived onsite, Zscaler teams are currently working on the swap. We’ll share a further update once the switch replacement is complete.Update - Mon, 02 Mar 2026 10:55:35 UTCThe Zscaler team has identified the issue as being related to faulty hardware. Zscaler teams are actively prioritizing the incident, exploring various mitigation options, and working to restore service for all affected traffic.Update - Mon, 02 Mar 2026 14:28:32 UTCZscaler is coordinating closely with the data center team to replace the faulty hardware. We expect shipment and deployment to be completed within 2–3 days and will provide a follow-up once the replacement is completed.Update - Fri, 06 Mar 2026 02:44:22 UTCAs per the latest confirmation from the data center team, the replacement hardware is expected to arrive by 10th March, 2026. We will share more updates as available.Update - Tue, 10 Mar 2026 04:16:42 UTCAs per the latest confirmation from the data center team, the replacement hardware is now expected to arrive by 13th March,2026. We will continue to monitor the situation closely and will share further updates as they become available.Update - Fri, 13 Mar 2026 09:20:16 UTCZscaler has received an update from the courier confirming that the replacement hardware has cleared customs and is pending arrival at the delivery destination. We will continue to monitor the situation closely and will provide further updates as they become available.Update - Mon, 16 Mar 2026 04:31:48 UTCZscaler is following up with the data center team to check the latest status of the shipment and further updates will be shared when available.Update - Mon, 16 Mar 2026 13:08:40 UTCThe replacement hardware has arrived onsite, Zscaler teams are currently working on the swap. We’ll share a further update once the switch replacement is complete.
Components affected
Zscaler EMEA Zscaler Brussels II

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