HMH Platform Status

All Systems Operational

About This Site

Welcome to the HMH Platform Status Center. We continually monitor the availability and performance of our products. Interruptions to service will be posted here. We are committed to providing you with transparent, specific, and timely information. Please bookmark this page or subscribe to receive notification of a service issue.

If you are having problems with an HMH platform and there are no active incidents posted here, please try clearing your cache. If the issue persists, contact HMH Technical Support.

HMH Ed Operational

Content and Resources Operational

Assignments Operational

Reporting Operational

ThinkCentral Operational

Content and Resources Operational

Assignments Operational

Reporting Operational

Holt McDougal Online Operational

Content and Resources Operational

Assignments Operational

Reporting Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

May 12, 2025

Holt McDougal Online Service Interruption

Resolved - Holt McDougal Online service has continued operating normally since 12:47PM ET. This incident is resolved.
May 12, 15:29 EDT

Monitoring - Holt McDougal Online service has returned to normal, and users should no longer experience any slow performance. As a precaution we will continue monitoring performance today.
May 12, 13:11 EDT

Identified - Our teams have identified the issue and performance has somewhat recovered. All users are currently able to log in to Holt McDougal Online and access assignments and manage classes. However, users may still experience performance that is slower than expected. Our teams are working to address this as soon as possible. Thank you for your patience.
May 12, 11:38 EDT

Investigating - We are investigating a disruption to the Holt McDougal Online. Administrators, Teachers and Students are unable to log in to the platform. Some users who were already logged in to the platform or use Single Sign On users (SSO) can log in and access the Dashboard, however they are unable to access assignments or manage classes (manual rostering).
May 12, 11:11 EDT

Scheduled Maintenance: Waggle

Completed - The scheduled maintenance has been completed.
May 12, 07:00 EDT

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
May 9, 23:30 EDT

Scheduled - Please be advised that we will be deploying improvements to Waggle this weekend to improve your experience. Waggle will be unavailable during the following timeframe:

Between Friday, May 9, 2025, between 11:30 PM EST and Monday, May 12, 2025, at 7:00 AM EST.

During this time, Waggle will be unavailable for educators and students. Thank you for your patience during this work.
May 9, 14:02 EDT

May 11, 2025

No incidents reported.

May 10, 2025

No incidents reported.

May 9, 2025

May 8, 2025

No incidents reported.

May 7, 2025

No incidents reported.

May 6, 2025

Amira on Ed Service Disruption

Resolved - Users are now able to launch Amira from Ed.
May 6, 11:07 EDT

Investigating - Please be advised that we are investigating a possible a service interruption for users attempting to launch Amira from Ed. Additional details will be provided here as soon as possible.
May 6, 10:35 EDT

May 5, 2025

No incidents reported.

May 4, 2025

No incidents reported.

May 3, 2025

No incidents reported.

May 2, 2025

No incidents reported.

May 1, 2025

No incidents reported.

Apr 30, 2025

No incidents reported.

Apr 29, 2025

No incidents reported.

Apr 28, 2025

No incidents reported.