Posted on: Wed, 12 Nov 2025 05:06:15 UTC
Resolved on: Wed, 12 Nov 2025 14:52:16 UTC
Impact Start Time: Wed, 12 Nov 2025 05:06:05 UTC
Impact Remediated: Wed, 12 Nov 2025 05:15:00 UTC
Mumbai VI Datacenter Issue
Customer Impact: Customers may encounter disconnections, periods of slowness or increased latency.
Available Workaround: If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC.
Datacenters affected: APAC, Mumbai VI
Status: Resolved
Event Type: Service Degradation

Zscaler has detected an issue with our Mumbai VI datacenter. Customers may encounter disconnections, periods of slowness or increased latency. If you’re currently experiencing any traffic impacting issues please failover to your secondary DC or any other alternate DC. 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."

Incident status- Resolved
Root cause- The incident was caused by an upstream transit network provider issue impacting connectivity.

Update - Wed, 12 Nov 2025 14:52:16 UTC

No further issues are observed for past several hours. We are considering this incident as resolved.

Update - Wed, 12 Nov 2025 08:07:48 UTC

The issue briefly resurfaced but is now resolved. We are re-establishing close monitoring and working with the network provider to ensure ongoing stability.

Update - Wed, 12 Nov 2025 07:15:21 UTC

Based on continuous monitoring, the previously observed issue is no longer detected, and all services continue to operate normally. As a result, we are now marking this incident as resolved.

Update - Wed, 12 Nov 2025 06:16:27 UTC

Zscaler has identified the recent issue as originating from a transit network provider. Services are currently working normally, and we will continue to monitor the situation to ensure stability.

Update - Wed, 12 Nov 2025 05:36:35 UTC

Zscaler teams have confirmed that services are working fine. The team is actively monitoring the situation to ensure stability.