diff --git a/src/common/lang/en.js b/src/common/lang/en.js
index a734cd5..3a2957d 100644
--- a/src/common/lang/en.js
+++ b/src/common/lang/en.js
@@ -749,7 +749,7 @@ Within their 50% share each consensus node will receive their share according to
         submit: 'Submit',
         updateSuccess: 'Update node info succeed',
         updateFailed: 'Update node info failed',
-        ledgerWalletNotSupportForNow: 'Nodes registered with ledger currently do not support updating node-related information '
+        ledgerWalletNotSupportForNow: 'Nodes registered with ledger currently do not support updating node-related information. Please email to: '
     },
   exchange: {
     exchange: 'Exchange',
diff --git a/src/common/lang/zh.js b/src/common/lang/zh.js
index 313f58a..0470bae 100644
--- a/src/common/lang/zh.js
+++ b/src/common/lang/zh.js
@@ -744,7 +744,7 @@ export default {
         submit: '提交',
         updateSuccess: '更新成功',
         updateFailed: '更新失败',
-        ledgerWalletNotSupportForNow: '使用Ledger注册的节点，暂时不支持更新节点相关信息'
+        ledgerWalletNotSupportForNow: '使用Ledger注册的节点，暂时不支持更新节点相关信息.请发送邮件至：'
     },
   exchange: {
     exchange: 'Exchange',
diff --git a/src/renderer/components/Common/SignSendTx.vue b/src/renderer/components/Common/SignSendTx.vue
index 37c4b80..c183b69 100644
--- a/src/renderer/components/Common/SignSendTx.vue
+++ b/src/renderer/components/Common/SignSendTx.vue
@@ -49,12 +49,20 @@ export default {
 
     },
     mounted(){
-        if(!this.wallet.key) {//common wallet
-            this.$store.dispatch('getLedgerStatus')
+        
+    },
+    watch: {
+        visible(newV, oldV) {
+            if(newV) {
+                if(!this.wallet.key) {//common wallet
+                    this.$store.dispatch('getLedgerStatus')
+                }
+            } else {
+                this.$store.dispatch('stopGetLedgerStatus')
+            }
         }
     },
     beforeDestroy() {
-        clearInterval(this.intervalId);
         this.$store.dispatch('stopGetLedgerStatus')
     },
     data(){
@@ -102,9 +110,11 @@ export default {
                     const signature =  pri.sign(tx) 
                     this.$store.dispatch("hideLoadingModals");
                     this.$emit('afterSign', signature) // 返回签名message结果
+                    this.walletPassword = ''
                 } else {
                     TransactionBuilder.signTransaction(tx, pri);
                     this.sendTx(tx);
+                    this.walletPassword = ''
                 }
                 
             } else {
@@ -122,7 +132,6 @@ export default {
                             },
                             err => {
                                 this.sending = false;
-                                this.ledgerStatus = "";
                                 this.$store.dispatch("hideLoadingModals");
                                 this.$message.error(this.$t('ledgerWallet.signFailed'))
                             }
@@ -143,7 +152,6 @@ export default {
                             },
                             err => {
                                 this.sending = false;
-                                this.ledgerStatus = "";
                                 this.$store.dispatch("hideLoadingModals");
                                 this.$message.error(this.$t('ledgerWallet.signFailed'))
                             }
diff --git a/src/renderer/components/Node/NodeApply/Register.vue b/src/renderer/components/Node/NodeApply/Register.vue
index a309599..0dc8e16 100644
--- a/src/renderer/components/Node/NodeApply/Register.vue
+++ b/src/renderer/components/Node/NodeApply/Register.vue
@@ -183,6 +183,7 @@ export default {
 				return;
 			}
 			this.current += 1;
+			this.$store.dispatch('stopGetLedgerStatus') // 防止过多ledger请求
 		},
 		cancel() {
 			this.current -= 1;
diff --git a/src/renderer/components/Node/NodeStake/NodeInfo.vue b/src/renderer/components/Node/NodeStake/NodeInfo.vue
index c340405..51c973b 100644
--- a/src/renderer/components/Node/NodeStake/NodeInfo.vue
+++ b/src/renderer/components/Node/NodeStake/NodeInfo.vue
@@ -1,7 +1,10 @@
 <template>
 <div>
     <div v-if="!stakeWallet.key" class="ledger-not-support">
-        {{$t('nodeInfo.ledgerWalletNotSupportForNow')}}
+        <p>{{$t('nodeInfo.ledgerWalletNotSupportForNow')}}
+             <a href=mailto:contact@ont.io>contact@ont.io</a>
+        </p>
+       
     </div>
     <div class="container" v-if="stakeWallet.key">
         <div class="info-container">
diff --git a/src/renderer/store/modules/LedgerConnector.js b/src/renderer/store/modules/LedgerConnector.js
index 9ffaffe..5cab0f0 100644
--- a/src/renderer/store/modules/LedgerConnector.js
+++ b/src/renderer/store/modules/LedgerConnector.js
@@ -36,7 +36,6 @@ function getDevice(commit, state) {
 }
 
 function getLedgerPublicKey(commit, state) {
-    // 这里如果去掉，再SelectWallet组件里，切换类型后不再重新获取ledger地址，会产生bug。
     // if (state.publicKey) {
     //     return;
     // }
@@ -89,17 +88,22 @@ const mutations = {
     }
 }
 
+const LEDGER_CONNECTOR_INTERVAL = 'ledger_connector_intervalId'
+
 const actions = {
     getLedgerStatus({dispatch,commit,state}, interval) {
-        let time = interval || 3000;
+        let time = interval || 5000;
         getDevice(commit, state)
         const intervalId = setInterval(() => {
             getDevice(commit, state)
         }, time)
-        commit('UPDATE_LEDGER_CONNECTOR_INTERVALID', {intervalId: intervalId})
+        localStorage.setItem(LEDGER_CONNECTOR_INTERVAL, intervalId)
     },
     stopGetLedgerStatus({commit, state}) {
-        clearInterval(state.intervalId)
+        const intervalId = localStorage.getItem(LEDGER_CONNECTOR_INTERVAL) || ''
+        clearInterval(intervalId)
+        localStorage.removeItem(LEDGER_CONNECTOR_INTERVAL)
+        commit('UPDATE_LEDGER_PUBLICKEY', {publicKey: ''})
     }
 }