azureIntermittent request failures and increased latency across Azure OpenAI, Azure AI Foundry, and Cognitive Services
Started
Sep 29, 2026, 10:00 AM UTC
Resolved
Sep 29, 2026, 4:54 PM UTC
Duration
6h 55m
Service
Azure Virtual Network
Event reference: intermittent-request-failures-and-increased-latency-across-azure-openai-azure-ai-foundry-and-cognitive-services
azuredown.com independently monitors the public Azure status page. How we source data.
Impact
Impact Statement: Starting at 10:00 UTC on 29 September 2026, a subset of customers using OpenAI Service, Foundry Agent Service, Foundry Models, and Cognitive Services, in Sweden Central may experience intermittent request failures, increased latency, and HTTP 5XX error codes when submitting requests to affected models and APIs hosted in this region. Current Status: Currently we are monitoring improvements in the overall experience. Our investigation is focused on observed instability and dependency connectivity timeouts for backend services that are relied on. Multiple mitigation workstreams are underway, and we are closely monitoring service health to assess their effectiveness and determine the most effective path toward full recovery. The next update will be provided within 60 minutes, or sooner if significant developments occur.
Affected service
Affected regions
Timeline
Updates newest first (times in UTC).
- Monitoring
Impact Statement: Starting at 10:00 UTC on 29 September 2026, a subset of customers using OpenAI Service, Foundry Agent Service, Foundry Models, and Cognitive Services, in Sweden Central may experience intermittent request failures, increased latency, and HTTP 5XX error codes when submitting requests to affected models and APIs hosted in this region. Current Status: Currently we are monitoring improvements in the overall experience. Our investigation is focused on observed instability and dependency connectivity timeouts for backend services that are relied on. Multiple mitigation workstreams are underway, and we are closely monitoring service health to assess their effectiveness and determine the most effective path toward full recovery. The next update will be provided within 60 minutes, or sooner if significant developments occur.