Connectivity Issues Affecting India Data Centers

We are currently investigating a connectivity issue impacting traffic between India and certain European destinations, primarily the UK. Customers may experience intermittent performance degradation affecting international traffic originating from the following Zscaler data centers: Chennai II, Hyderabad I, Kolkata I, Mumbai VI, and Mumbai VII. 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 have engaged the relevant upstream service providers and are actively working to identify and mitigate the issue.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.Update - Tue, 12 May 2026 20:19:02 UTCWe have identified the root cause of the issue and working on resolution.