Antti K. Koskela 1/13/2026

What do you do when AKS randomly changes IP address?

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This technical article addresses a common problem in Azure Kubernetes Service (AKS) where the public IP address assigned to an ingress controller can change unexpectedly, breaking DNS records and firewall rules. It details the scenarios that cause IP changes, explains the difference between single and separate inbound/outbound IPs based on load balancer configuration, and offers practical steps to prevent issues or recover quickly when an IP change occurs.

What do you do when AKS randomly changes IP address?

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