Outage in Pusher

Elevated API Errors in AP4 Cluster

Resolved Major
October 21, 2025 - Started 1 day ago - Lasted about 3 hours
Official incident page

Incident Report

We're experiencing an elevated level of API errors and latency in AP4 and are currently looking into the issue.
Components affected
Pusher Channels WebSocket client API Pusher Channels Stats Integrations Pusher Channels REST API

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Latest Updates ( sorted recent to last )
RESOLVED 1 day ago - at 10/21/2025 05:43PM

This incident has been resolved.

MONITORING 1 day ago - at 10/21/2025 05:39PM

A fix has been implemented and we are monitoring the results.

IDENTIFIED 1 day ago - at 10/21/2025 05:32PM

We are currently investigating an issue affecting the Channels API. A large number of customers may be unable to publish new messages through the API in the AP4 cluster.

MONITORING 1 day ago - at 10/21/2025 03:29PM

A fix has been implemented and we are monitoring. The cluster will take a few more minutes to fully stabilize across all nodes.

IDENTIFIED 1 day ago - at 10/21/2025 03:27PM

The team continues to make progress restoring the cache services. We anticipate full resolution in the next 10-15 minutes.

IDENTIFIED 1 day ago - at 10/21/2025 03:09PM

The team has identified the issue with one of our backend caching servers. The team is working to restore the connections to the server.

INVESTIGATING 1 day ago - at 10/21/2025 03:06PM

We're experiencing an elevated level of API errors and latency in AP4 and are currently looking into the issue.

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