diff --git a/.github/workflows/node.test.yaml b/.github/workflows/node.test.yaml
index 2992e0872..288792eca 100644
--- a/.github/workflows/node.test.yaml
+++ b/.github/workflows/node.test.yaml
@@ -98,7 +98,7 @@ jobs:
           REDIS_HOST: "localhost"
           REDIS_PORT: "6379"
           ENCRYPT_PASSWORD: "anything"
-          KAIA_WEBSOCKET_URL: "wss://public-en-cypress.klaytn.net/ws"
+          KAIA_WEBSOCKET_URL: "wss://public-en.node.kaia.io/ws"
           ETH_WEBSOCKET_URL: "wss://ethereum-rpc.publicnode.com"
           KAIA_PROVIDER_URL: "https://public-en-kairos.node.kaia.io"
           KAIA_REPORTER_PK: ${{ secrets.TEST_DELEGATOR_REPORTER_PK}}
diff --git a/contracts/v0.1/hardhat.config.cjs b/contracts/v0.1/hardhat.config.cjs
index 94c1fe2bf..032e2b042 100644
--- a/contracts/v0.1/hardhat.config.cjs
+++ b/contracts/v0.1/hardhat.config.cjs
@@ -47,7 +47,7 @@ const config = {
       ..._baobab,
     },
     cypress: {
-      url: 'https://public-en-cypress.klaytn.net',
+      url: 'https://public-en.node.kaia.io',
       ...commonConfig,
       gasPrice: 250_000_000_000,
     },
diff --git a/core/test/nonce-manager.test.ts b/core/test/nonce-manager.test.ts
index 3deecacec..cf44136ee 100644
--- a/core/test/nonce-manager.test.ts
+++ b/core/test/nonce-manager.test.ts
@@ -5,7 +5,7 @@ import { State } from '../src/reporter/state'
 
 describe('nonce-manager', () => {
   const PROVIDER_URL = process.env.GITHUB_ACTIONS
-    ? 'https://public-en-cypress.klaytn.net'
+    ? 'https://public-en.node.kaia.io'
     : 'https://public-en-kairos.node.kaia.io'
   const redisClient: RedisClientType = createClient({ url: '' })
   const ORACLE_ADDRESS = '0x0E4E90de7701B72df6F21343F51C833F7d2d3CFb'
diff --git a/core/test/reporter.test.ts b/core/test/reporter.test.ts
index a08d8e172..30c022485 100644
--- a/core/test/reporter.test.ts
+++ b/core/test/reporter.test.ts
@@ -99,7 +99,7 @@ describe('Reporter', function () {
 
 describe('Filter invalid reporters inside of State', function () {
   const PROVIDER_URL = process.env.GITHUB_ACTIONS
-    ? 'https://public-en-cypress.klaytn.net'
+    ? 'https://public-en.node.kaia.io'
     : 'https://public-en-kairos.node.kaia.io'
   const redisClient: RedisClientType = createClient({ url: '' })
 
diff --git a/inspector/hardhat.config.ts b/inspector/hardhat.config.ts
index 41b37729e..09cc8e2f1 100644
--- a/inspector/hardhat.config.ts
+++ b/inspector/hardhat.config.ts
@@ -2,8 +2,8 @@ import { HardhatUserConfig } from "hardhat/config";
 import "./inspector-task";
 
 import "@nomicfoundation/hardhat-toolbox";
-import "hardhat-deploy";
 import dotenv from "dotenv";
+import "hardhat-deploy";
 
 dotenv.config();
 
@@ -45,7 +45,7 @@ const config: HardhatUserConfig = {
       gasPrice: 250_000_000_000,
     },
     cypress: {
-      url: process.env.PROVIDER || "https://public-en-cypress.klaytn.net",
+      url: process.env.PROVIDER || "https://public-en.node.kaia.io",
       ...commonConfig,
       gasPrice: 250_000_000_000,
     },
diff --git a/inspector/scripts/json-rpc-sync-check.sh b/inspector/scripts/json-rpc-sync-check.sh
index 01f665d97..b05fca2b6 100755
--- a/inspector/scripts/json-rpc-sync-check.sh
+++ b/inspector/scripts/json-rpc-sync-check.sh
@@ -6,7 +6,7 @@ readonly OUR_KAIROS_JSON_RPC="http://100.93.31.29:8551"
 readonly OUR_KAIA_JSON_RPC="http://100.75.43.49:8551"
 
 readonly PUBLIC_KAIROS_JSON_RPC="https://public-en-kairos.node.kaia.io"
-readonly PUBLIC_KAIA_JSON_RPC="https://public-en-cypress.klaytn.net"
+readonly PUBLIC_KAIA_JSON_RPC="https://public-en.node.kaia.io"
 
 check_klay_sync_baobab() {
     our_block_hex=$(get_our_klay_block $OUR_KAIROS_JSON_RPC)
diff --git a/node/pkg/checker/ping/app.go b/node/pkg/checker/ping/app.go
index ca9712979..9a0f33ddc 100644
--- a/node/pkg/checker/ping/app.go
+++ b/node/pkg/checker/ping/app.go
@@ -158,7 +158,7 @@ func (app *App) Start(ctx context.Context) {
 					log.Debug().Msg("connecting ICMP Pinger")
 					err := endpoint.run()
 					if err != nil {
-						log.Error().Err(err).Msg("failed to ping endpoint")
+						log.Warn().Err(err).Msg("failed to ping endpoint")
 						app.ResultsBuffer <- PingResult{
 							Address: endpoint.Address,
 							Success: false,
@@ -185,14 +185,19 @@ func (app *App) Start(ctx context.Context) {
 				}
 
 				if result.Delay > time.Duration(app.ThresholdFactor*app.RTTAvg[result.Address]) {
-					log.Error().Any("result", result).Msg("ping failed")
+					log.
+						Warn().
+						Any("result", result).
+						Float64("delay_ms", float64(result.Delay)/float64(time.Millisecond)).
+						Float64("threshold_ms", app.ThresholdFactor*app.RTTAvg[result.Address]/float64(time.Millisecond)).
+						Msg("ping failed")
 					app.FailCount[result.Address] += 1
 				} else {
 					log.Debug().Any("result", result).Msg("ping success")
 					app.FailCount[result.Address] = 0
 				}
 			} else {
-				log.Error().Any("result", result).Msg("failed to ping endpoint")
+				log.Warn().Any("result", result).Msg("failed to ping endpoint")
 				app.FailCount[result.Address] += 1
 			}