Is Pulsant Down?

We are aware of an ongoing issue affecting Microsoft 365, which may impact services that rely on Microsoft platforms. If you have raised a support case via the Pulsant portal or email and are not receiving the support or updates you require, particularly if the issue is urgent, please contact the Pulsant Support Desk directly on: 0345 119 9999 You can continue to access the support portal here: https://portal.pulsant.com/ and email us via support@pulsant.com Microsoft are reporting a major service outage starting at 18:00 on 12/11/2026. Latest updates: Microsoft service health status Update from Microsoft at 20:30: While we haven't identified any recent changes that correlate with the start of impact, our investigation indicates the failed health checks may originate from a specific component on the affected servers that's responsible for processing them. We're deploying a targeted change to bypass this component on a subset of servers to validate whether this restores availability, and we've taken steps to prevent additional servers from being removed from service while we work to return the affected servers to service. We're also investigating why affected servers are experiencing elevated processor usage while handling requests. While validating the targeted change, we found that many of the affected servers have become unresponsive, which is preventing us from confirming whether the change is effective. We're restarting these servers so they can come back online with the change in place, and we're applying the same approach to additional affected portions of our infrastructure to validate the results more broadly.  Potentially impacted services include: - Exchange Online - Microsoft Teams - SharePoint Online - Microsoft Copilot 365 - Microsoft Defender XDR - Microsoft Planner - Microsoft To Do Update from Microsoft at 19:30: We're aggressively pursuing all pathways to reduce impact. As a precaution, we've paused all deployments and configuration changes while we review recent changes for any correlation to this event. We've determined that the elevated load isn't driven by an overall increase in traffic, but by a large number of servers being unexpectedly unavailable, which is shifting load onto the remaining infrastructure. We're investigating what's causing these servers to become unavailable while we work to safely return them to service.  Potentially impacted services include: - Exchange Online - Microsoft Teams - SharePoint Online - Microsoft Copilot 365 - Microsoft Defender XDR

This incident has been resolved. --- [2026-10-22T16:17:09.362+01:00] (monitoring) The portal is now available and operating normally following the successful completion of maintenance and remediation activities. Ongoing monitoring remains in place to ensure service stability. --- [2026-10-21T14:48:54.756+01:00] (investigating) The Pulsant Portal is currently undergoing maintenance and is temporarily unavailable. In the meantime, please use the following contact methods to reach our support team. 0345 119 9999 support@pulsant.com

Dear client, WHAT? Pulsant engineers will be performing maintenance upon Pulsant Cloud Morpheus management platform. This platform provides cloud account management capabilities via publicly accessible https://cmp.pulsant.com URL. This is an At-Risk notification; there will be a short interruption to the service so temporary service outage is expected as part of this maintenance however this work will not affect or disrupt in any way client infrastructure running on Pulsant Cloud. Only the Pulsant Cloud management interface will be affected during the maintenance period. WHY? This is part of ongoing maintenance of our platforms, which include software updates and infrastructure changes. WHEN? The maintenance will take place during the following window: Start: 16/11/2026 18:00 GMT End: 16/11/2026 23:59 GMT If you have any questions, please raise a case by emailing support@pulsant.com or by calling our support team directly. For your reference, please see our status page for updates on planned maintenance and service incidents. This can be found at http://status.pulsant.com. Please accept our sincere apologies for any inconvenience this may cause. Regards, Pulsant Support Team 0345 119 9999

CHG0063535 Planned Maintenance - Storage Platform (Croydon LN-1) Services Affected / Facility: Storage Platform (Croydon LN-1) Incident or Maintenance Description: WHAT? Pulsant Engineers will be working upon the storage platform in Croydon LN-1. These storage systems provide services to Pulsant Cloud services. WHY? This is part of ongoing maintenance of our platforms, which include software updates and infrastructure changes. Impact On Services: This is an At Risk notification, due to the redundant nature of the systems no interruption to service is expected.