Outage in Gurobi Optimization
Web Services DNS issue
Resolved MinorIncident Report
We are currently experiencing an issue affecting access to some Gurobi services. Users may see DNS resolution failures, resulting in intermittent or complete inability to connect to gurobi.com, portal.gurobi.com, and licensing endpoints. We are working to resolve the issue.
Components affected
Gurobi Optimization Gurobi Website Gurobi Optimization Gurobi User Portal Gurobi Optimization Web License Service - GlobalNeed to monitor Gurobi Optimization outages?
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Latest Updates ( sorted recent to last )
RESOLVED
8 days ago - at 02/07/2026 12:16AM
The DNS resolution issues affecting gurobi.com, portal.gurobi.com, and the license servers have now been fully resolved. All major public DNS resolvers (Google, Cloudflare, AWS, ISP resolvers) are returning valid responses again, and services are operating normally. A subset of users may continue to see issues if their local DNS resolvers maintain stale cache entries, but these will clear automatically.
Thank you for your patience while we investigated and resolved the issue.
INVESTIGATING
8 days ago - at 02/06/2026 11:51PM
We are currently experiencing an issue affecting access to some Gurobi services. Users may see DNS resolution failures, resulting in intermittent or complete inability to connect to gurobi.com, portal.gurobi.com, and licensing endpoints. We are working to resolve the issue.
Latest Gurobi Optimization outages
AWS Operational Issue US-EAST-1 (N. Virginia) - 4 months ago
Login issues on Portal - over 1 year ago
Issue with some Gurobi public services - over 1 year ago
Cloud machines unavailable in Azure US region eastus - over 1 year ago
Issue with File Uploaders - over 1 year ago
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