diff --git a/.pipelines/cni/load-test-templates/restart-hns-template.yaml b/.pipelines/cni/load-test-templates/restart-hns-template.yaml
new file mode 100644
index 0000000000..f688c10aae
--- /dev/null
+++ b/.pipelines/cni/load-test-templates/restart-hns-template.yaml
@@ -0,0 +1,29 @@
+parameters:
+  clusterName: ""
+  cni: "cniv1"
+
+steps:
+  - task: AzureCLI@1
+    inputs:
+      azureSubscription: $(BUILD_VALIDATIONS_SERVICE_CONNECTION)
+      scriptLocation: "inlineScript"
+      scriptType: "bash"
+      addSpnToEnvironment: true
+      inlineScript: |
+        make -C ./hack/aks set-kubeconf AZCLI=az CLUSTER=${{ parameters.clusterName }}
+        kubectl get pod -owide -A
+
+        echo "Validate pod IP assignment before HNS restart"
+        make test-validate-state CNI_TYPE=${{ parameters.cni }} OS_TYPE=windows
+
+        podList=`kubectl get pods -n kube-system -l os=windows,app=privileged-daemonset -owide --no-headers | awk '{print $1}'`
+        echo "Restart HNS service on each node"
+        for pod in $podList; do
+          kubectl exec -i -n kube-system $pod -- powershell Restart-Service hns
+        done
+
+        echo "Validate pod IP assignment after HNS restart"
+        make test-validate-state CNI_TYPE=${{ parameters.cni }} OS_TYPE=windows
+    name: "restartHNS"
+    displayName: "Restart HNS and Validate pods"
+    retryCountOnTaskFailure: 3
diff --git a/.pipelines/cni/pipeline.yaml b/.pipelines/cni/pipeline.yaml
index 4cbc86aae9..69fe6db574 100644
--- a/.pipelines/cni/pipeline.yaml
+++ b/.pipelines/cni/pipeline.yaml
@@ -204,7 +204,7 @@ stages:
     condition: always()
     dependsOn:
       - cilium_overlay
-      - win22_cniv1
+      - win22_cniv1_HNS
       - linux_cniv1
       - linux_podsubnet
       - linux_overlay
@@ -224,9 +224,9 @@ stages:
             cilium_overlay:
               name: cilium_overlay
               clusterName: cilium-overlay
-            win_cniv1:
-              name: win_cniv1
-              clusterName: win-cniv1
+            win22-cniv1:
+              name: win22-cniv1
+              clusterName: win22-cniv1
             linux_cniv1:
               name: linux_cniv1
               clusterName: linux-cniv1
diff --git a/.pipelines/cni/singletenancy/cniv1-template.yaml b/.pipelines/cni/singletenancy/cniv1-template.yaml
index af3c003d22..5f7d1c54e2 100644
--- a/.pipelines/cni/singletenancy/cniv1-template.yaml
+++ b/.pipelines/cni/singletenancy/cniv1-template.yaml
@@ -19,8 +19,8 @@ parameters:
 # + The azure-vnet state should be validated with that of CNI state.
 # + Pods should have ips assigned and connectivity/datapath test should be present.
 # Windows
-# - The HNS state should be validated with that of CNI state.
-
+# + The HNS state should be validated with that of CNI state.
+# + All CNI E2E is re-ran after HNS service is restarted
 
 stages:
   - stage: create_${{ parameters.name }}
@@ -157,3 +157,86 @@ stages:
           service: true
           hostport: true
 
+  - ${{ if eq(parameters.os, 'windows') }}:
+    - stage: ${{ parameters.name }}_HNS
+      variables:
+        commitID: $[ stagedependencies.setup.env.outputs['SetEnvVars.commitID'] ]
+        npmVersion: $[ stagedependencies.setup.env.outputs['SetEnvVars.npmVersion'] ]
+        dropgzVersion: $[ stagedependencies.setup.env.outputs['SetEnvVars.dropgzVersion'] ]
+      pool:
+        name: $(BUILD_POOL_NAME_DEFAULT)
+      dependsOn:
+        - ${{ parameters.name }}
+        - setup
+      displayName: "HNS Test - ${{ parameters.clusterName }}"
+      jobs:
+        - job: restart_hns
+          displayName: "Restart and Validate HNS"
+          condition: and( succeeded(), ${{ eq(parameters.os, 'windows') }} )
+          steps:
+            - template: ../load-test-templates/restart-hns-template.yaml
+              parameters:
+                clusterName: ${{ parameters.clusterName }}-$(commitID)
+                cni: cniv1
+        - job: deploy_pods
+          displayName: "Scale Test"
+          dependsOn: restart_hns
+          steps:
+            - template: ../load-test-templates/pod-deployment-template.yaml
+              parameters:
+                clusterName: ${{ parameters.clusterName }}-$(commitID)
+                scaleup: ${{ parameters.scaleup }}
+                os: ${{ parameters.os }}
+                iterations: ${{ parameters.iterations }}
+                nodeCount: ${{ parameters.nodeCount }}
+            - template: ../load-test-templates/validate-state-template.yaml
+              parameters:
+                clusterName: ${{ parameters.clusterName }}-$(commitID)
+                os: ${{ parameters.os }}
+                cni: cniv1
+        - job: restart_nodes
+          displayName: "Restart Test"
+          dependsOn: deploy_pods
+          steps:
+            - template: ../load-test-templates/restart-node-template.yaml
+              parameters:
+                clusterName: ${{ parameters.clusterName }}-$(commitID)
+                os: ${{ parameters.os }}
+                nodeCount: ${{ parameters.nodeCount }}
+                scaleup: ${{ parameters.scaleup }}
+            - template: ../load-test-templates/validate-state-template.yaml
+              parameters:
+                clusterName: ${{ parameters.clusterName }}-$(commitID)
+                os: ${{ parameters.os }}
+                cni: cniv1
+                restartCase: "true"
+        - job: recover
+          displayName: "Recover Resources"
+          dependsOn: restart_nodes
+          steps:
+            - task: AzureCLI@1
+              inputs:
+                azureSubscription: $(BUILD_VALIDATIONS_SERVICE_CONNECTION)
+                scriptLocation: "inlineScript"
+                scriptType: "bash"
+                addSpnToEnvironment: true
+                inlineScript: |
+                  echo "Delete load-test Namespace"
+                  make -C ./hack/aks set-kubeconf AZCLI=az CLUSTER=${{ parameters.clusterName }}-$(commitID)
+                  kubectl delete ns load-test
+                  kubectl cluster-info
+                  kubectl get po -owide -A
+              name: "recover"
+              displayName: "Delete test Namespaces"
+        - template: ../k8s-e2e/k8s-e2e-job-template.yaml
+          parameters:
+            sub: $(BUILD_VALIDATIONS_SERVICE_CONNECTION)
+            clusterName: ${{ parameters.clusterName }}-$(commitID)
+            os: ${{ parameters.os }}
+            dependsOn: recover
+            datapath: true
+            dns: true
+            portforward: true
+            hybridWin: true
+            service: true
+            hostport: true
diff --git a/test/integration/manifests/load/privileged-daemonset-windows.yaml b/test/integration/manifests/load/privileged-daemonset-windows.yaml
index c9a7839013..1001f0721f 100644
--- a/test/integration/manifests/load/privileged-daemonset-windows.yaml
+++ b/test/integration/manifests/load/privileged-daemonset-windows.yaml
@@ -5,14 +5,17 @@ metadata:
   namespace: kube-system
   labels:
     app: privileged-daemonset
+    os: windows
 spec:
   selector:
     matchLabels:
       app: privileged-daemonset
+      os: windows
   template:
     metadata:
       labels:
         app: privileged-daemonset
+        os: windows
     spec:
       nodeSelector:
         kubernetes.io/os: windows