<p>We have upgraded our AKS to 1.24.3, and since we have, we are having an issue with containers refusing connection.</p>
<p>There have been no changes to the deployed microservices as part of the AKS upgrade, and the issue is occurring at random intervals.</p>
<p>From what I can see the container is returning the error - The client closed the connection.</p>
<p>What I cannot seem to be able to trace is, the connections, within AKS, and the issue is across all services.</p>
<p>Has anyone experienced anything similar and are able to provide any advise?</p>

<p>I hit similar issue upgrading from 1.23.5 to 1.24.3, issue was configuration mis-match with kubernetes load balancer health probe path and ingress-nginx probe endpoints.</p>
<p>Added this annotation to my ingress-nginx helm install command corrected my problem: --set controller.service.annotations.&quot;service.beta.kubernetes.io/azure-load-balancer-health-probe-request-path&quot;=/healthz</p>
