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Outage in Halo

UK Region Outage

Resolved Major
November 09, 2026 - Started 3 days ago - Lasted 1 day

Incident Report

Summary AI Generated

**UK Region Outage – Halo Core Application** The Halo hosted solution experienced a major outage affecting the UK region, with the Core Application impacted for approximately 2.6 hours. The root cause was identified within two minutes of the issue starting and a fix was implemented immediately. The incident was fully resolved with all instances returning to normal service, and a root cause analysis is expected within two weeks.

Our engineers are aware of issues affecting the hosted Halo solution and are currently investigating. Updates will follow shortly once we have more information.
Components affected
Halo Core Application

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Latest Updates ( sorted recent to last )
3 days ago - at 11/09/2026 05:53PM

Our engineers are aware of issues affecting the hosted Halo solution and are currently investigating. Updates will follow shortly once we have more information.

3 days ago - at 11/09/2026 06:49PM

Our engineers identified the root cause of the service degradation within two minutes of the issue starting and a fix was put in place immediately. Service is now returning to normal. We’re continuing to monitor closely to make sure the fix holds and will share further updates if needed.

3 days ago - at 11/09/2026 08:26PM

Incident resolved. Instances have returned to full service after implementation of fix. An RCA will be made available for this incident within 2 weeks.

UPDATE: Following our earlier update, our engineers found that the fix we applied did not fully resolve the issue and some tenants are still being affected. Our engineers have identified the remaining problem and are working on a further fix.

We’re sorry for any confusion our previous update may have caused and for the ongoing disruption.

3 days ago - at 11/10/2026 08:42AM

The issue is still ongoing. Our team is actively investigating and working to restore full service as quickly as possible. We apologise for the disruption and will provide another update as soon as we have more information.

2 days ago - at 11/10/2026 09:40AM

Our engineers are aware that the service is still unavailable and we’re treating this as an active outage. While the earlier fix resolved part of the problem, some tenants are still affected and our engineers are working on a fix. During this time, you may be unable to access the service or may see errors and slow performance.

2 days ago - at 11/10/2026 10:27AM

All UK application servers have been refreshed. All UK portals have been fully restored. Still investigating to ensure full service returns.

2 days ago - at 11/10/2026 10:28AM

Our engineers are clearing some stored data on our systems that’s preventing things from returning to normal for some customers. We know how disruptive this is and we really appreciate your patience.

2 days ago - at 11/10/2026 10:38AM

Our engineers have now confirmed how to fully resolve the issue and are applying the fix. We expect full service to be restored for all UK tenants within the next 20 to 30 minutes. We’ll keep you updated as things progress and appreciate your patience while we complete this work.

2 days ago - at 11/10/2026 10:58AM

Full service has now been restored for all tenants except those hosted on EU-STABLE-5. Tenants on EU-STABLE-5 may still experience some disruption and our engineers are working to fully resolve this as quickly as possible.

2 days ago - at 11/10/2026 11:01AM

Service has now been restored for tenants on EU-STABLE-5 and all tenants should have full access again. We’re continuing to monitor closely to make sure everything remains stable and will share another update if anything changes. Thank you for your patience while we worked to resolve this.

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