Capetown IV Datacenter Issue

Zscaler has detected an issue with our Capetown IV datacenter 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 - Sat, 21 Mar 2026 15:02:04 UTCZscaler has identified intermittent packet loss on a network path impacting connectivity between the Cape Town (CPT4) data center and backend services. This resulted in intermittent service degradation for a subset of customers. As part of mitigation, traffic has been rerouted to alternate infrastructure paths, which are demonstrating improved stability and performance. Zscaler is working with the network provider, who has confirmed a fiber outage as the underlying cause. Repair activities are expected to begin shortly. Zscaler continues to apply mitigation measures and closely monitor the situation. Further updates will be provided as more information becomes available.Update - Sat, 21 Mar 2026 11:34:01 UTCZscaler is prioritizing the issue and is actively working to isolate the problem and identify the root cause. We appreciate your patience and understanding during this investigation. Additional updates will be provided as more information becomes available.Update - Sat, 21 Mar 2026 15:02:04 UTCZscaler has identified intermittent packet loss on a network path impacting connectivity between the Cape Town (CPT4) data center and backend services. This resulted in intermittent service degradation for a subset of customers. As part of mitigation, traffic has been rerouted to alternate infrastructure paths, which are demonstrating improved stability and performance. Zscaler is working with the network provider, who has confirmed a fiber outage as the underlying cause. Repair activities are expected to begin shortly. Zscaler continues to apply mitigation measures and closely monitor the situation. Further updates will be provided as more information becomes available.