MS 365 Health issues causing disruption within our Systems

Microsoft believe that all systems are now healthy, however they will continue to monitor services.

This incident, which has affected the University of Dundee, will now be closed. Should any further instability occur which would have a major impact on our MS services, we will re open this post.

Microsoft continue their period of extended monitoring, and the availability of the Outlook on the Web service has reached expected availability levels. They are continuing to optimize the environment to address any remaining impact.

Latest update from Microsoft:

_"We’ve isolated the cause of mail queue delays and have restarted the affected infrastructure to drain stalled queues. We’ll remain in an extended monitoring phase until this draining is completed and we can consider the incident fully recovered.

This quick update is designed to give the latest information on this issue."_

This will mean that you may see emails coming in today that were sent yesterday however access to MS365 services should now be restored.

The fix which is addressing impact is continuing to deploy and has now reached 98 percent of the affected environment.

There are still delays in some targeted restarts of their infrastructure; however, they are identifying alternative options to expedite recovery of the affected infrastructure.

Microsoft have advised that their next update will be at approx 5.30pm GMT

Microsoft have identified the root cause of this issue and have developed a patch, which has been tested and is now being deployed through the affected infrastructure. The next update from Microsoft is due around 4pm.

You may find that systems and services start working, however please note the infrastructure is still recovering, and these services may or may not continue to function correctly, until Microsoft confirm the issue is resolved.

Microsoft have identified a recent change, which they believe has resulted in this issue. They have started to revert the change and are investigating what additional actions are required to mitigate the issue.

Please be advised, for those users who would email Help4u direct, that this incident will affect some, but not all, emails into our Service Management Platform TopDesk. At present, you can continue to send email to Help4U as normal. The system will process any backlog when the issue has been rectified by Microsoft. TopDesk have updated their status page

Microsoft have updated their incident with further areas that may be affected by this incident: Users may be unable to use the following features within Microsoft Teams:

• Users may be unable to use the search function.
• Users may be unable to access or modify their calendar in Microsoft Teams. This would include loading calendar, viewing meetings, creating/updating meetings and joining meetings.
• Users may not see updated list of files and links failing to load within the Chat shared tab.
• Users may not see files within the File attach suggestion feature.
• Users may be unable to create or modify new teams and channels.
• Users may be unable to update presence.

Users may experience the following issues with Microsoft Purview:

• Users may be unable to access the Purview Portal, or Purview Solutions.
• Users may experience delays in policy stamping and with Adaptive Scope Evaluations.

Users may be unable to use the search feature within SharePoint Online.

Microsoft continue to investigate this issue

The affected scenarios are as follows:

Users may be unable to access Exchange Online using the following impacted connection methods:

• Outlook on the web
• Outlook desktop client
• Representational State Transfer (REST)
• Exchange ActiveSync (EAS)

Users may also be unable to access or modify their calendar in Microsoft Teams. This would include loading calendar, viewing meetings, creating/updating meetings and joining meetings.

Microsoft are continuing to investigate this issue.

Due to an MS 365 issue, we see problems within Outlook, Teams, and Calendering. Slowness is the most likely factor causing the inability to access these.

This is a 3rd Party responsibility so we will update you when we have more information.