diff --git a/test/e2e/tests/envoy_shutdown.go b/test/e2e/tests/envoy_shutdown.go
index 24e6b334637..7a249e01950 100644
--- a/test/e2e/tests/envoy_shutdown.go
+++ b/test/e2e/tests/envoy_shutdown.go
@@ -141,7 +141,8 @@ func restartProxyAndWaitForRollout(t *testing.T, timeoutConfig config.TimeoutCon
 		return err
 	}
 
-	return wait.PollUntilContextTimeout(ctx, 1*time.Second, timeoutConfig.CreateTimeout, true, func(ctx context.Context) (bool, error) {
+	// increase timeout for IPv6 first cluster
+	return wait.PollUntilContextTimeout(ctx, 2*time.Second, 2*timeoutConfig.CreateTimeout, true, func(ctx context.Context) (bool, error) {
 		// wait for replicaset with the same annotation to reach ready status
 		podList := &corev1.PodList{}
 		listOpts := []client.ListOption{
diff --git a/test/e2e/upgrade/eg_upgrade_test.go b/test/e2e/upgrade/eg_upgrade_test.go
index b93a3bab0df..6c3b9521e5f 100644
--- a/test/e2e/upgrade/eg_upgrade_test.go
+++ b/test/e2e/upgrade/eg_upgrade_test.go
@@ -36,6 +36,14 @@ func TestEGUpgrade(t *testing.T) {
 			*flags.GatewayClassName, *flags.CleanupBaseResources, *flags.ShowDebug)
 	}
 
+	var skipTests []string
+	// previous did not support ipv6, so skip upgrade tests for ipv6
+	if tests.IPFamily == "ipv6" {
+		skipTests = append(skipTests,
+			tests.EGUpgradeTest.ShortName,
+		)
+	}
+
 	cSuite, err := suite.NewConformanceTestSuite(suite.ConformanceOptions{
 		Client:               c,
 		RestConfig:           cfg,
@@ -46,7 +54,7 @@ func TestEGUpgrade(t *testing.T) {
 		RunTest:              *flags.RunTest,
 		BaseManifests:        "upgrade/manifests.yaml",
 		SupportedFeatures:    sets.New[features.FeatureName](features.SupportGateway),
-		SkipTests:            []string{},
+		SkipTests:            skipTests,
 	})
 	if err != nil {
 		t.Fatalf("Failed to create test suite: %v", err)
diff --git a/test/utils/prometheus/prometheus.go b/test/utils/prometheus/prometheus.go
index c59a8f12ebb..bc62da2cc07 100644
--- a/test/utils/prometheus/prometheus.go
+++ b/test/utils/prometheus/prometheus.go
@@ -8,6 +8,7 @@ package prometheus
 import (
 	"context"
 	"fmt"
+	"net"
 	"time"
 
 	prom "github.com/prometheus/client_golang/api"
@@ -36,7 +37,7 @@ func NewClient(kubeClient client.Client, nn types.NamespacedName) (*Client, erro
 	var addr string
 	for _, ing := range svc.Status.LoadBalancer.Ingress {
 		if len(ing.IP) > 0 {
-			addr = fmt.Sprintf("http://%s", ing.IP)
+			addr = fmt.Sprintf("http://%s", net.JoinHostPort(ing.IP, "80"))
 		}
 	}
 
diff --git a/tools/make/kube.mk b/tools/make/kube.mk
index d53c1931360..122e089b79e 100644
--- a/tools/make/kube.mk
+++ b/tools/make/kube.mk
@@ -22,7 +22,8 @@ BENCHMARK_REPORT_DIR ?= benchmark_report
 
 E2E_RUN_TEST ?=
 E2E_CLEANUP ?= true
-E2E_TEST_ARGS ?= -v -tags e2e -timeout 20m
+E2E_TIMEOUT ?= 20m
+E2E_TEST_ARGS ?= -v -tags e2e -timeout $(E2E_TIMEOUT)
 
 # Set Kubernetes Resources Directory Path
 ifeq ($(origin KUBE_PROVIDER_DIR),undefined)