Coredns name resolution issue in kubeadm clutser

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Cluster information:

Kubernetes version: V1.29
Cloud being used: bare-metal using Kubeadm
Installation method: Kubeadm with 3 master and 3 worker with HA Proxy LB
Host OS: Ubuntu

Facing issue with CoreDNS Name resolution in DNS, Facing error Name and Service not know, this cluster contains 2 application and Name resolution is not working in One Application and Working for Second, We tried to delete CornDNS and reinstall but still same issue, How come CoreDNS is working for one application and Not for Second in Same Cluster.