Resolved after 14 days 8 hours, affecting Push Notifications Broker, on October 29, 2025.
We have confirmed that a fix deployed 24 hours ago has returned APNs notifications availability to normal.
Affected components
Update timeline
- investigating Oct 29, 2025, 03:21 PM UTC
An increased amount of notifications are failing due to an "apn write timeout".
- investigating Oct 29, 2025, 10:20 PM UTC
We've taken action to improve server stability and are investigating the root cause of the "Session closed with error code 11" error to address the increased notification failure rate.
- monitoring Nov 07, 2025, 09:44 PM UTC
A fix has been deployed which has greatly reduced the number of failed APNs notifications. Work to improve reliability further is ongoing.
- resolved Nov 12, 2025, 11:40 PM UTC
We have confirmed that a fix deployed 24 hours ago has returned APNs notifications availability to normal.
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