F5 Distributed Cloud - Service Degradation - DNS resolution issue - INC-20260520-462

The issue affecting DNS resolution has been fully resolved, and all services are operating normally.
Our teams have validated system stability and will continue to monitor to ensure consistent performance.
Thank you for your patience while we worked to resolve this issue. If you have any questions or concerns, please feel free to reach out to our support team.

Contact information
- Email support: support@cloud.f5.com
- Phone support: For region-specific contact details, please visit:
https://my.f5.com/manage/s/article/K000135931

We appreciate your understanding and cooperation as we continue to improve our services.

Sincerely,
F5 Distributed Cloud

The F5 Distributed Cloud team has successfully resolved the issue that was causing intermittent DNS resolution failures.
All services are now operating normally, and we are closely monitoring the environment to ensure continued stability and performance.

At approximately 16:25 UTC, we identified DNS-related issues resulting in availability degradation for some services. Customers utilizing F5 DNS may be affected.
Our engineering teams are actively working on corrective measures to address these resolution issues. Additionally, we are investigating the root cause and implementing further mitigation strategies to prevent recurrence.
We are committed to keeping you informed and will share another update within 60 minutes, or sooner if more information becomes available.
Thank you for your patience as we work to resolve this issue.

This advisory is to inform you that we are currently investigating reports of service degradation affecting our DNS services.

We understand this may be affecting your operations and we are committed to providing transparent and timely updates as more information becomes available. While we gather more information, we recommend monitoring the progress on this site (https://www.f5cloudstatus.com/) for the latest update.

Investigation Status:
• We have identified potential service impact at 04:50 PM UTC;
• Our incident response team has been fully mobilized;
• Initial investigation and impact assessment efforts are underway.
Next Steps:
• A detailed incident notification will be provided within 30 minutes;
• Our teams are working to determine the root cause of the incident;
• We will share mitigation steps as soon as they become available.

We appreciate your patience as we work to resolve this situation. If you are experiencing a critical business impact, please contact our support team through your established channels.

Thank you for your continued support and trust in F5.