diff --git a/pkg/proxy/winkernel/hnsV1.go b/pkg/proxy/winkernel/hnsV1.go
index ed3545ea307..3787f4514ef 100644
--- a/pkg/proxy/winkernel/hnsV1.go
+++ b/pkg/proxy/winkernel/hnsV1.go
@@ -75,6 +75,9 @@ func (hns hnsV1) getEndpointByIpAddress(ip string, networkName string) (*endpoin
 	}
 
 	endpoints, err := hcsshim.HNSListEndpointRequest()
+	if err != nil {
+		return nil, fmt.Errorf("Failed to list endpoints: %v", err)
+	}
 	for _, endpoint := range endpoints {
 		equal := false
 		if endpoint.IPAddress != nil {
diff --git a/pkg/proxy/winkernel/hnsV2.go b/pkg/proxy/winkernel/hnsV2.go
index fbfbecf2c4f..4898c2474f2 100644
--- a/pkg/proxy/winkernel/hnsV2.go
+++ b/pkg/proxy/winkernel/hnsV2.go
@@ -83,6 +83,9 @@ func (hns hnsV2) getEndpointByIpAddress(ip string, networkName string) (*endpoin
 	}
 
 	endpoints, err := hcn.ListEndpoints()
+	if err != nil {
+		return nil, fmt.Errorf("Failed to list endpoints: %v", err)
+	}
 	for _, endpoint := range endpoints {
 		equal := false
 		if endpoint.IpConfigurations != nil && len(endpoint.IpConfigurations) > 0 {