Cardiff University incident
Online Enrolment unavailable via SIMS Online
Cardiff University experienced a major incident on September 3, 2025 affecting Student Records (SIMS Online), lasting 5d 1h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 03, 2025, 08:56 AM UTC
University IT are aware of an issue with SIMS Online, specifically that the Online Enrolment section is currently 'unavailable due to maintenance'. We are in urgent contact with our suppliers to get this resolved. Students looking to enrol online are advised to periodically login to SIMS Online and see whether the section is still unavailable, and also to monitor this Status Page. Apologies for any inconvenience this is causing.
- investigating Sep 04, 2025, 12:58 PM UTC
This issue is still under investigation.
- monitoring Sep 05, 2025, 02:36 PM UTC
A fix has been implemented and the issues affecting the Online Enrolment facility within SIMS Online should now be resolved. Engineers are continuing to monitor the service.
- resolved Sep 08, 2025, 10:16 AM UTC
The issue affecting the Online Enrolment section within SIMS Online has now been resolved.