FortiAppSec Cloud incident
Connectivity Issues with Load Balancer Node in Azure - EU West
FortiAppSec Cloud experienced a notice incident on September 28, 2025 affecting WAF Scrubbing Region - Azure - EU West (Netherlands), lasting 1d 5h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- monitoring Sep 28, 2025, 03:03 PM UTC
We are currently investigating an issue causing abnormal connection terminations for services in the Azure - EU West region. Impact: The issue appears to be limited to a small number of sites that use an A-record to point directly to the 20.50.222.94, 20.54.176.184 IP address due to LB connectivity issue. Current Status: Our engineering teams are restored LB connectivity becomes available and actively keep monitoring. Immediate Recommendation: For affected customers, we recommend temporarily changing the A-record pointing from 20.50.222.94, 20.54.176.184 to **20.107.95.65, 20.107.95.95** from your DNS configuration to mitigate the impact.
- monitoring Sep 28, 2025, 04:45 PM UTC
Our investigation confirms this is related to Azure network instability, with severe packet loss observed. We are urgently engaging with Azure technical support while continuing to monitor the situation closely.
- monitoring Sep 28, 2025, 06:49 PM UTC
Update: The LB connectivity traffic has been restored. Action Recommendation: For customers **who switched the A-record to temporary LB IPs (20.107.95.65 and 20.107.95.95)**, these addresses will continue to be available for the next 48 hours, we kindly recommend updating your DNS A-records pointing back to **20.50.222.94 and 20.54.176.184** at your earliest convenience to ensure uninterrupted service.
- resolved Sep 29, 2025, 08:53 PM UTC
This incident has been resolved.