VMware Workspace ONE incident
Horizon Cloud Service Next-Gen: Custom Client Access Subdomain URLs Issues - All Regions (Partial Region)
VMware Workspace ONE experienced a major incident on December 17, 2025 affecting Horizon Portal - Broker - US and Horizon Portal - Broker - Ireland and 1 more component, lasting 11m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Dec 17, 2025, 01:52 AM UTC
The Horizon Cloud Service team is investigating reports of issues with Custom Client Access Subdomain URLs (.omnissahorizon.com). Users accessing this URL may experience Desktop/Application launch failures. Existing user connections remain unaffected. As a workaround, we recommend using the https://cloud.omnissahorizon.com URL to launch Desktops. We are looking into this further and will provide more information soon. Service reliability is a top priority at Horizon Cloud Service, and we are continuously improving our systems.
- monitoring Dec 17, 2025, 01:56 AM UTC
Horizon Cloud Service Next-Gen has completed actions to remediate the issues and confirm that the services are available. Operations teams are continuing to monitor the availability of the service to ensure the recovery is complete.
- resolved Dec 17, 2025, 02:03 AM UTC
The issue is resolved. We apologize for the inconvenience and thank you for your patience and continued support. Service reliability is a top priority at Horizon Cloud Service, and we are making continuous improvements to better our systems.