Gurobi Optimization Outage History

Gurobi Optimization had 6 outages in the last 2 years totaling 30h 0m of downtime — averaging 0.2 incidents per month.

There were 6 Gurobi Optimization outages since June 17, 2024 totaling 30h 0m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.gurobi.com

Notice February 6, 2026

Web Services DNS issue

Detected by Pingoru: Feb 06, 2026, 11:51 PM UTC
Resolved: Feb 07, 2026, 12:16 AM UTC
Duration: 24m

Affected: Gurobi WebsiteGurobi User PortalWeb License Service - Global

Timeline · 2 updates

investigating Feb 06, 2026, 11:51 PM UTC

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.
resolved Feb 07, 2026, 12:16 AM UTC

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.

Read the full incident report →

Major October 20, 2025

AWS Operational Issue US-EAST-1 (N. Virginia)

Detected by Pingoru: Oct 20, 2025, 12:56 PM UTC
Resolved: Oct 20, 2025, 10:16 PM UTC
Duration: 9h 19m

Affected: Gurobi AWS us-east-1Gurobi User PortalInstant Cloud Provisioning - GlobalWeb License Service - Global

Timeline · 4 updates

investigating Oct 20, 2025, 12:56 PM UTC

We are currently experiencing connectivity issues with our services hosted in AWS region US-EASt-1. AWS has acknowledged a service disruption in these region and is actively working to resolve the issue. To minimize impact, we recommend customers temporarily switch to an alternative AWS region until full service is restored. You can monitor the latest updates directly from AWS at AWS Service Health Dashboard.
investigating Oct 20, 2025, 12:58 PM UTC

We are continuing to investigate this issue.
investigating Oct 20, 2025, 02:55 PM UTC

We are currently experiencing connectivity issues with our services hosted in AWS region US-EAST-1. AWS has acknowledged a service disruption in these region and is actively working to resolve the issue. To minimize impact, we recommend customers temporarily switch to an alternative AWS region until full service is restored. You can monitor the latest updates directly from AWS at AWS Service Health Dashboard.
resolved Oct 20, 2025, 10:16 PM UTC

This incident has been resolved.

Read the full incident report →

Critical September 27, 2024

Login issues on Portal

Detected by Pingoru: Sep 27, 2024, 10:29 AM UTC
Resolved: Sep 27, 2024, 01:46 PM UTC
Duration: 3h 16m

Affected: Gurobi User Portal

Timeline · 2 updates

investigating Sep 27, 2024, 10:29 AM UTC

We are currently investigating a login issue on our User Portal portal.gurobi.com. We will update you as soon as we have identified the issue or can provide a workaround. Please excuse the inconvenience!
resolved Sep 27, 2024, 01:46 PM UTC

The login issue on our User Portal (portal.gurobi.com) has been resolved. You should now be able to access the User Portal without any issues. Thank you for your patience!

Read the full incident report →

Major August 19, 2024

Issue with some Gurobi public services

Detected by Pingoru: Aug 19, 2024, 02:41 PM UTC
Resolved: Aug 19, 2024, 04:29 PM UTC
Duration: 1h 48m

Affected: Gurobi Website

Timeline · 2 updates

investigating Aug 19, 2024, 02:41 PM UTC

We are aware of an outage affecting the Gurobi Downloader, Uploader, Checksum and Navigator and are working on bringing them back online.
resolved Aug 19, 2024, 04:29 PM UTC

This incident has been resolved.

Read the full incident report →

Major June 20, 2024

Cloud machines unavailable in Azure US region eastus

Detected by Pingoru: Jun 20, 2024, 09:58 AM UTC
Resolved: Jun 21, 2024, 12:42 AM UTC
Duration: 14h 43m

Affected: Gurobi Azure eastus

Timeline · 4 updates

investigating Jun 20, 2024, 09:58 AM UTC

It is currently not possible to start machines in pools that are configured to run in the US Azure region eastus. Please use the Azure westeurope region or AWS machines until we have figured out the issue.
investigating Jun 20, 2024, 03:32 PM UTC

We have found that this is an error on Azure itself and we are not able to fix this from our side. Please avoid using Azure machines in region eastus for now. We will update this page as soon as we know more.
monitoring Jun 20, 2024, 06:11 PM UTC

The issue has been resolved, and we are actively monitoring the systems to ensure stability.
resolved Jun 21, 2024, 12:42 AM UTC

This incident has been resolved.

Read the full incident report →

Minor June 17, 2024

Issue with File Uploaders

Detected by Pingoru: Jun 17, 2024, 01:25 PM UTC
Resolved: Jun 17, 2024, 01:53 PM UTC
Duration: 28m

Affected: Gurobi Website

Timeline · 2 updates

investigating Jun 17, 2024, 01:25 PM UTC

We are currently experiencing technical difficulties with our file uploading services, including the 'File Upload via Web' at https://www.gurobi.com/upload-a-model/. Users may find these services unreachable and may encounter errors when attempting to upload files. Our team is actively investigating the issue to resolve it as quickly as possible. We apologize for any inconvenience caused and appreciate your patience during this time.
resolved Jun 17, 2024, 01:53 PM UTC

File Uploaders Now Operational. We are pleased to announce that the issues affecting our file uploading services, including the 'File Upload via Web' at https://www.gurobi.com/upload-a-model/, have been resolved. All systems are now operational, and users should be able to upload files without any issues.

Read the full incident report →