Slack Outage Log Archive: 2026

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 36m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 43m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 37m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 24m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 58m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 30m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 1h 46m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 42m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 35m

Slack Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 58m

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 25m

Slack Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 1h 24m

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 1h 2m

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 35m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 38m

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 59m

Slack Database Failover and Connection Backlog

A hardware failure on the primary database cluster triggered an automatic failover to the replica.

Duration: 1h 19m

Slack Network Congestion in Transit Provider

A major tier-1 network transit provider experienced packet loss in Europe and North America.

Duration: 52m

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 49m

Slack API Gateway Timeout and Increased Error Rates

Engineers investigated a spike in 504 Gateway Timeout errors affecting public API endpoints.

Duration: 46m