Connectivity Issues Impacting Zscaler Client Connector Portal and Other US-Hosted Services

Zscaler is investigating an issue with its Chennai II, Chennai III, Hyderabad I, Mumbai VI, New Delhi I datacenter on the zscaler.net and zscalertwo.net cloud and is currently investigating the matter. Customers might face access/slowness issues in accessing the Zscaler Client Connector Portal and other US hosted destinations including ZPA applications. If you’re currently experiencing any traffic impacting issues please failover to 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 - Sun, 07 Dec 2025 14:43:25 UTCZscaler continues to actively collaborate with network partners to identify the cause and improve routing paths. We also recommend that impacted customers engage their service providers to review routing toward Zscaler to ensure optimal performance. We will provide further updates as more information becomes available.Next Update: 24 Hours Update - Sat, 06 Dec 2025 11:19:40 UTCZscaler has observed packet loss between the US and India data centers and is working towards resolving the issue. Further updates will be shared once available.Update - Sat, 06 Dec 2025 12:10:50 UTCZscaler has observed that the issues are being caused by network transit issues between US and India. Zscaler has optimized the network path to the Zscaler Client Connector Portal, and it is now fully operational. For issues accessing other U.S.-hosted applications, please contact Zscaler Support and provide the source and destination IP addresses so we can evaluate path-optimization options.Update - Sat, 06 Dec 2025 20:40:27 UTCZscaler continue to work along with transit provider to address the issue, meanwhile affected customers are requested to provide the source and destination IP addresses so we can evaluate path-optimization options.Update - Sun, 07 Dec 2025 04:31:52 UTCAccess to the Zscaler Client Connector Portal remains stable. For issues accessing U.S.-hosted destinations, including ZPA applications, Zscaler is working with our network partners to identify the cause. We also ask customers to engage their service providers to review and optimize routing to Zscaler (brokers) to improve performance.Update - Sun, 07 Dec 2025 04:31:52 UTCAccess to the Zscaler Client Connector Portal remains stable. For issues accessing U.S.-hosted destinations, including ZPA applications, Zscaler is working with our network partners to identify the cause. We also ask customers to engage their service providers to review and optimize routing to Zscaler (brokers) to improve performance.Update - Sun, 07 Dec 2025 14:42:01 UTCZscaler continues to actively collaborate with network partners to identify the cause and improve routing paths. We also recommend that impacted customers engage their service providers to review routing toward Zscaler to ensure optimal performance. We will provide further updates as more information becomes available.Update - Sun, 07 Dec 2025 14:43:25 UTCZscaler continues to actively collaborate with network partners to identify the cause and improve routing paths. We also recommend that impacted customers engage their service providers to review routing toward Zscaler to ensure optimal performance. We will provide further updates as more information becomes available.