Pusher outage, 19 October 2025
Increased latency - US2 cluster
- Started
- Resolved
- 19 Oct 2025, 08:17 UTC (after 7 h 32 min)
- Impact
- Minor
- Affected
- Channels WebSocket client API, Channels presence channels
Last update from Pusher
## **Root Cause Analysis: Increased Latency and Message Delivery Failures - US2 Cluster** **Incident Date:** October 19, 2025 **Duration:** 00:44 UTC - 08:17 UTC **Status:** Resolved ### **Summary** On October 19, 2025, customers using Pusher experienced increased latency and message delivery failures. These issues primarily affected the US2 cluster, with intermittent impact also observed in the MT1 and US3 clusters. The incident resulted in delayed or undelivered messages for many applications. Latency stabilized at 08:17 UTC after mitigation actions were completed. ### **Impact** Between 00:44 UTC and 08:17 UTC, multiple customers experienced: * **Delayed or failed message delive...
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