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

Nov 20, 2024

No incidents reported today.

Nov 19, 2024

Single Sign On Access via Classlink

Resolved - Login access for all impacted ClassLink Single Sign On (SSO) accounts has continued operating normally today and this incident is now resolved. Thank you for your patience during this disruption.
Nov 19, 16:58 EST

Monitoring - We have identified an issue impacting some ClassLink Single Sign On (SSO) access to HMH platforms. Our Engineering team has released a solution to resolve this issue and all users should be able to log in successfully. We will continue to monitor for any further issues.
Nov 19, 12:24 EST

Nov 18, 2024

No incidents reported.

Nov 17, 2024

No incidents reported.

Nov 16, 2024

No incidents reported.

Nov 15, 2024

No incidents reported.

Nov 14, 2024

Service Interruption to Waggle

Resolved - This incident has been resolved.
Nov 14, 17:05 EST

Monitoring - Performance on Waggle has returned to normal. We will continue monitoring performance tonight and the next update is planned for 5:00PM ET.
Nov 14, 15:28 EST

Investigating - Waggle is experiencing a service interruption impacting Skill Quizzes. Students are currently unable to launch these quizzes and teacher are unable to preview the quiz questions.

We recommend that teachers do not assign Skills Quizzes at this time. Instead, they can assign Practice or Learn activities.

Our teams are investigating this issue now and additional updates will be provided here as soon as possible. Thank you for your patience and we apologize for any inconvenience.
Nov 14, 14:27 EST

Nov 13, 2024

No incidents reported.

Nov 12, 2024

Service Interruption to Read 180

Resolved - This incident has been resolved.
Nov 12, 15:12 EST

Update - Read 180 service continues operating normally this morning. Our teams will continue monitoring performance today and the next update is planned for 3:00PM ET.
Nov 12, 08:19 EST

Monitoring - Performance on Read 180 has returned to normal. We will continue monitoring performance tonight and the next update is planned for 9:00AM ET.
Nov 11, 21:26 EST

Update - HMH teams have released a solution and completed validation testing.
Nov 11, 21:25 EST

Update - HMH teams have validated a solution for this issue and will release it after business hours to avoid any further disruption. The next update is planned for 10:00PM ET tonight.
Nov 11, 15:22 EST

Update - Our teams continue working to address this issue and will provide an update on or before 3:00PM ET.
Nov 11, 12:42 EST

Identified - Read 180 is experiencing a service degradation impacting students, who may experience long delays or may be unable to launch the application. Our teams have identified the issue and are working to address it as quickly as possible.

Thank you for your patience and we sincerely apologize for any inconvenience this may cause.
Nov 11, 10:04 EST

Nov 11, 2024

Nov 10, 2024

No incidents reported.

Nov 9, 2024

No incidents reported.

Nov 8, 2024

No incidents reported.

Nov 7, 2024

No incidents reported.

Nov 6, 2024

No incidents reported.