On September 15, we will publish an update to the TLS certificates used by Azure Sphere devices to establish a connection to the update service. When a device takes the cert update, it will reboot once to apply it. There is no impact to device connectivity or operations other than an additional reboot as the device downloads new certs.
Device update can be temporarily delayed for up to 24 hours. For more information see Defer device updates in the customer documentation.
If you encounter problems
For self-help technical inquiries, please visit Microsoft Q&A or Stack Overflow. If you require technical support and have a support plan, please submit a support ticket in Microsoft Azure Support or work with your Microsoft Technical Account Manager/Technical Specialist. If you would like to purchase a support plan, please explore the Azure support plans.