Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler teams have successfully deployed the fix during the planned maintenance window. Post-deployment sanity validation has been completed with successful results, and the service remains stable.
Increased CAPTCHA Challenges During Web Access - zscaler.net, zscalertwo.net, zscloud.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
The increased Google CAPTCHA activity has subsided, and this incident is resolved. The investigation linked the repeated challenges to Google’s automated traffic detection. No contributing changes to Zscaler services were identified. A subset of users experienced repeated CAPTCHA prompts when accessing Google services or websites using Google CAPTCHA, interrupting searches and related workflows. Customers who continue to encounter Google CAPTCHA prompts should review Avoiding Google CAPTCHA...
Miami III, Miami IV Datacenter Issue - zscalertwo.net, zscalerthree.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has isolated the connectivity degradation affecting Miami III and Miami IV to congestion on external ISP network paths. Corrective action is required from the relevant service provider. This incident notification is now closed. Customers experiencing continued impact should contact their ISP to request path optimization. Connecting through an alternate data center may help mitigate the impact; please validate connectivity after failover. Contact Zscaler Support if further assistance i...
Intermittent Connectivity Issues Affecting Plain UDP Tunnels for Branch Connectors and Cloud Connectors in APAC - zscloud.net
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Zscaler has completed post-deployment monitoring and confirmed that all affected services are functioning as expected. Based on continued stability and healthy service checks, we are marking this incident as Resolved.
Provider resolved: . The notice publication date does not establish the outage start.
resolved
Following the actions previously taken by Zscaler, the incident has been resolved. Our systems remain fully operational, and we will continue to monitor the situation closely to ensure ongoing stability.
update
We are receiving positive feedback from multiple customers indicating service recovery. Our teams continue to closely monitor services and will provide further updates as more information becomes available.
update
We have reverted the contributing configuration change and implemented additional adjustments to improve service capacity on ZS2. We are currently validating these changes and monitoring recovery for Zscaler Client Connector sign-in/registration and Mobile Admin Portal access. We will provide another update as validation completes or if service status changes.
update
We are continuing to investigate an issue impacting Zscaler Client Connector sign-in/registration and access to the Mobile Admin Portal for a subset of users on ZS2. Initial mitigation actions did not fully restore service. We identified a contributing configuration change that reduced service capacity for the Mobile Admin Portal on ZS2, which led to intermittent access issues for some users. Our teams are reverting the change and actively applying additional remediation steps to recover affected services. We are monitoring recovery and will provide further updates as more information becomes available.
update
We are investigating an issue impacting Zscaler Client Connector sign-in/registration and access to the Mobile Admin Portal for a subset of users on ZS2. Mitigation actions have been applied and we are now monitoring the service. We will provide another update as more information becomes available.
update
We have identified the root cause of the issue and working on resolution.
update
Zscaler has detected an Authentication issue with the Zscaler Client Connector Portal and Zscaler Client Connector (ZCC) on its zscalertwo.net Cloud. Some users may see a “Zscaler Client Connector was unable to enroll at this time” message when trying to sign in to Zscaler Client Connector (ZCC). Users who are already signed in should continue to access services normally.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.
Legacy Incident Archive
453 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.
Zscaler will be enabling IPv6 at our Miami III (MIA3) Data Center. During the maintenance window the services through MIA3 Data Center will be restarted in phases to minimize the service impact.Other Zscaler sites and Zscaler Services will continue to operate normally.Maintenance Window:Start time is July 13, 4:00 pm PDT (July 13, 23:00 UTC)End time is July 13, 9:00 pm PDT (July 14, 4:00 UTC)Update - Tue, 14 Jul 2026 04:36:49 UTCThis activity has been completed. Please contact Zscaler Suppo...
Product Name Update: ZIdentity is now Authentication Service - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net, private.zscaler.com, zdxcloud.net, zpatwo.net, zslogin.net
Source not attested
Last archived state: investigating
View archived record details
investigating
What's Changing?Zscaler is renaming ZIdentity to Authentication Service. This is a name change only, with no changes to product functionality.Why Are We Making This Change?The name Authentication Service more clearly reflects the product’s purpose as the centralized authentication and identity management service across Zscaler services.For more information, please refer to the following article: What is Authentication Service
Bogota I (BOG1) Data Center - Performance Degradation - zscalertwo.net
partialSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler is aware of and currently investigating performance degradation affecting the Bogota I (BOG1) Data Center. Customers may experience increased latency or degraded performance while accessing services through this location. 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 progres...
The Zscaler Site Reliability Engineering team will be performing an urgent maintenance during which access to the Zscaler Management Portal for Partners and ZDX Admin Portal might not be available. This maintenance is scheduled for Saturday at 11:00 AM Pacific Time on July 11, 2026 (Saturday, July 11, 2026 06:00 PM UTC), and can take up to 2 hours to complete. All logs will be collected and available after maintenance is complete. Please contact Zscaler Support if you have additional question...
Reporting and Logging Issue - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
partialSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler is currently investigating reports of an issue affecting Reporting and Logging on the zscalerthree.net cloud. Customers may intermittently encounter errors when attempting to download Web Insights logs.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.Root Cause: A backen...
Tianjin Datacenter Issue - zscloud.net
Source not attested
Last archived state: investigating
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investigating
Zscaler is currently investigating reports of an issue with its Tianjin 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. 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 secti...
Datacenter Expansion New Delhi (DEL1) - private.zscaler.com
Source not attested
Last archived state: investigating
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investigating
As part of our regular expansion of capacity, we are adding ZPA Public Service Edge nodes to our new data center in New Delhi I (DEL1).These would be available anytime on or after 11th July 2026.RegionLocationNotesASIANEW DELHI IOld DCThe IP addresses for the DC are part of the already published IP address range.Please update your firewall policy rules along with any upstream ACL(s) to allow the IP address ranges to avoid any service disruption.For more information, please visit:https://confi...
Changes in exclusion method for Zoom and Teams on iOS - zscaler.net, zscalerone.net, zscalertwo.net, zscloud.net, zscalerthree.net
Source not attested
Last archived state: investigating
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investigating
As a part of Zscaler’s continuous product improvement process, we are making a change to how the built-in exclusions for Zoom and Teams work on iOS. Today these exclusions are processed inside Zscaler Client Connector (ZCC) itself, where ZCC will receive the traffic and then bypass it from tunneling. We have seen vastly improved performance with these applications by excluding this traffic pre-zcc, commonly referred to as VPN Gateway Bypass, and we will be making a change to exclude this t...
Zscaler will perform scheduled maintenance for Experience Center on Jul 18, 2026, 1:00 AM to 3:00 AM UTC. During this maintenance window, the service is expected to remain available; however, users may experience brief intermittent disruptions. This maintenance is intended to improve platform reliability and performance.After the maintenance is complete, service is expected to operate normally, and no customer action is required. If you experience any issues after the maintenance window, plea...
Intermittent Failures Affecting Mobile Admin Public API Requests - zscaler.net
partialSource not attested
Last archived state: investigating
View archived record details
investigating
Zscaler is investigating an issue causing intermittent failures for the Mobile Admin Public API service on zscaler.net. Some customers may experience failures when accessing the Mobile Admin public API.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.Root Cause: Configuration is...
