diff --git a/app/src/main/java/io/nekohasekai/sagernet/Constants.kt b/app/src/main/java/io/nekohasekai/sagernet/Constants.kt
index 1d15eef..a2fece3 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/Constants.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/Constants.kt
@@ -43,7 +43,8 @@ object Key {
 
     const val CONNECTION_TEST_URL = "connectionTestURL"
 
-    const val TCP_KEEP_ALIVE_INTERVAL = "tcpKeepAliveInterval"
+    const val NETWORK_CHANGE_RESET_CONNECTIONS = "networkChangeResetConnections"
+    const val WAKE_RESET_CONNECTIONS = "wakeResetConnections"
     const val RULES_PROVIDER = "rulesProvider"
     const val LOG_LEVEL = "logLevel"
     const val LOG_BUF_SIZE = "logBufSize"
diff --git a/app/src/main/java/io/nekohasekai/sagernet/bg/BaseService.kt b/app/src/main/java/io/nekohasekai/sagernet/bg/BaseService.kt
index 3083e3b..4d69504 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/bg/BaseService.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/bg/BaseService.kt
@@ -23,7 +23,6 @@ import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
 import libcore.Libcore
 import moe.matsuri.nb4a.Protocols
-import moe.matsuri.nb4a.utils.LibcoreUtil
 import moe.matsuri.nb4a.utils.Util
 import java.net.UnknownHostException
 
@@ -58,12 +57,15 @@ class BaseService {
                             proxy?.box?.sleep()
                         } else {
                             proxy?.box?.wake()
+                            if (DataStore.wakeResetConnections) {
+                                Libcore.resetAllConnections(true)
+                            }
                         }
                     }
                 }
 
                 Action.RESET_UPSTREAM_CONNECTIONS -> runOnDefaultDispatcher {
-                    LibcoreUtil.resetAllConnections(true)
+                    Libcore.resetAllConnections(true)
                     runOnMainDispatcher {
                         Util.collapseStatusBar(ctx)
                         Toast.makeText(ctx, "Reset upstream connections done", Toast.LENGTH_SHORT)
@@ -259,7 +261,7 @@ class BaseService {
             }
         }
 
-        open fun persistStats() {
+        fun persistStats() {
             // TODO NEW save app stats?
         }
 
@@ -278,7 +280,9 @@ class BaseService {
                     }
                     if (oldName != null && upstreamInterfaceName != null && oldName != upstreamInterfaceName) {
                         Logs.d("Network changed: $oldName -> $upstreamInterfaceName")
-                        LibcoreUtil.resetAllConnections(true)
+                        if (DataStore.networkChangeResetConnections) {
+                            Libcore.resetAllConnections(true)
+                        }
                     }
                 }
             }
@@ -286,16 +290,6 @@ class BaseService {
 
         var wakeLock: PowerManager.WakeLock?
         fun acquireWakeLock()
-        suspend fun switchWakeLock() {
-            wakeLock?.apply {
-                release()
-                wakeLock = null
-                data.notification?.postNotificationWakeLockStatus(false)
-            } ?: apply {
-                acquireWakeLock()
-                data.notification?.postNotificationWakeLockStatus(true)
-            }
-        }
 
         suspend fun lateInit() {
             wakeLock?.apply {
diff --git a/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt b/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt
index 6688d78..8c95911 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/database/DataStore.kt
@@ -87,6 +87,8 @@ object DataStore : OnPreferenceDataStoreChangeListener {
     var showBottomBar by configurationStore.boolean(Key.SHOW_BOTTOM_BAR)
 
     var allowInsecureOnRequest by configurationStore.boolean(Key.ALLOW_INSECURE_ON_REQUEST)
+    var networkChangeResetConnections by configurationStore.boolean(Key.NETWORK_CHANGE_RESET_CONNECTIONS) { true }
+    var wakeResetConnections by configurationStore.boolean(Key.WAKE_RESET_CONNECTIONS)
 
     //
 
@@ -98,7 +100,6 @@ object DataStore : OnPreferenceDataStoreChangeListener {
     var trafficSniffing by configurationStore.stringToInt(Key.TRAFFIC_SNIFFING) { 1 }
     var resolveDestination by configurationStore.boolean(Key.RESOLVE_DESTINATION)
 
-    //    var tcpKeepAliveInterval by configurationStore.stringToInt(Key.TCP_KEEP_ALIVE_INTERVAL) { 15 }
     var mtu by configurationStore.stringToInt(Key.MTU) { 9000 }
 
     var bypassLan by configurationStore.boolean(Key.BYPASS_LAN)
diff --git a/app/src/main/java/io/nekohasekai/sagernet/ui/SettingsPreferenceFragment.kt b/app/src/main/java/io/nekohasekai/sagernet/ui/SettingsPreferenceFragment.kt
index d509ecd..4de4242 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/ui/SettingsPreferenceFragment.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/ui/SettingsPreferenceFragment.kt
@@ -79,9 +79,6 @@ class SettingsPreferenceFragment : PreferenceFragmentCompat() {
         val ipv6Mode = findPreference<Preference>(Key.IPV6_MODE)!!
         val trafficSniffing = findPreference<Preference>(Key.TRAFFIC_SNIFFING)!!
 
-        val tcpKeepAliveInterval = findPreference<EditTextPreference>(Key.TCP_KEEP_ALIVE_INTERVAL)!!
-        tcpKeepAliveInterval.isVisible = false
-
         val bypassLan = findPreference<SwitchPreference>(Key.BYPASS_LAN)!!
         val bypassLanInCore = findPreference<SwitchPreference>(Key.BYPASS_LAN_IN_CORE)!!
 
@@ -162,7 +159,6 @@ class SettingsPreferenceFragment : PreferenceFragmentCompat() {
         appendHttpProxy.onPreferenceChangeListener = reloadListener
         showDirectSpeed.onPreferenceChangeListener = reloadListener
         trafficSniffing.onPreferenceChangeListener = reloadListener
-        tcpKeepAliveInterval.onPreferenceChangeListener = reloadListener
         bypassLan.onPreferenceChangeListener = reloadListener
         bypassLanInCore.onPreferenceChangeListener = reloadListener
         mtu.onPreferenceChangeListener = reloadListener
diff --git a/app/src/main/java/moe/matsuri/nb4a/NativeInterface.kt b/app/src/main/java/moe/matsuri/nb4a/NativeInterface.kt
index 4cf04b2..f06e26d 100644
--- a/app/src/main/java/moe/matsuri/nb4a/NativeInterface.kt
+++ b/app/src/main/java/moe/matsuri/nb4a/NativeInterface.kt
@@ -15,8 +15,8 @@ import io.nekohasekai.sagernet.ktx.app
 import io.nekohasekai.sagernet.ktx.runOnDefaultDispatcher
 import io.nekohasekai.sagernet.utils.PackageCache
 import libcore.BoxPlatformInterface
+import libcore.Libcore
 import libcore.NB4AInterface
-import moe.matsuri.nb4a.utils.LibcoreUtil
 import java.net.InetSocketAddress
 
 class NativeInterface : BoxPlatformInterface, NB4AInterface {
@@ -86,7 +86,7 @@ class NativeInterface : BoxPlatformInterface, NB4AInterface {
             Logs.d("other selector: $selectorTag")
             return
         }
-        LibcoreUtil.resetAllConnections(true)
+        Libcore.resetAllConnections(true)
         DataStore.baseService?.apply {
             runOnDefaultDispatcher {
                 val id = data.proxy!!.config.profileTagMap
diff --git a/app/src/main/java/moe/matsuri/nb4a/utils/LibcoreUtil.kt b/app/src/main/java/moe/matsuri/nb4a/utils/LibcoreUtil.kt
deleted file mode 100644
index a434e7f..0000000
--- a/app/src/main/java/moe/matsuri/nb4a/utils/LibcoreUtil.kt
+++ /dev/null
@@ -1,18 +0,0 @@
-package moe.matsuri.nb4a.utils
-
-import io.nekohasekai.sagernet.database.DataStore
-import io.nekohasekai.sagernet.database.ProxyEntity
-import io.nekohasekai.sagernet.database.SagerDatabase
-import libcore.Libcore
-
-object LibcoreUtil {
-    fun resetAllConnections(system: Boolean) {
-        if (DataStore.serviceState.started) {
-            val proxy = SagerDatabase.proxyDao.getById(DataStore.currentProfile)
-            if (proxy?.type == ProxyEntity.TYPE_TUIC) {
-                return
-            }
-        }
-        Libcore.resetAllConnections(system)
-    }
-}
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 18098e8..c08ee1f 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -489,4 +489,6 @@
     <string name="group_not_subscription">组类型不是订阅</string>
     <string name="allow_insecure_on_request_sum">更新订阅的时候允许不安全的连接</string>
     <string name="global_allow_insecure">总是跳过 TLS 证书验证</string>
+    <string name="network_change_reset_connections">当网络发生变化时重置出站连接</string>
+    <string name="wake_reset_connections">当设备从睡眠状态唤醒时重置出站连接</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 920679f..96471ae 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -570,4 +570,6 @@
     <string name="global_allow_insecure">Always allow insecure</string>
     <string name="mux_preference">Mulitplex</string>
     <string name="padding">Padding</string>
+    <string name="network_change_reset_connections">Reset outbound connections when network changes</string>
+    <string name="wake_reset_connections">Reset outbound connections when device wake from sleep</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/xml/global_preferences.xml b/app/src/main/res/xml/global_preferences.xml
index 0111a51..eef631d 100644
--- a/app/src/main/res/xml/global_preferences.xml
+++ b/app/src/main/res/xml/global_preferences.xml
@@ -56,6 +56,13 @@
             app:key="profileTrafficStatistics"
             app:summary="@string/profile_traffic_statistics_summary"
             app:title="@string/profile_traffic_statistics" />
+        <SwitchPreference
+            app:defaultValue="true"
+            app:icon="@drawable/ic_baseline_speed_24"
+            app:key="showDirectSpeed"
+            app:summary="@string/show_direct_speed_sum"
+            app:title="@string/show_direct_speed"
+            app:useSimpleSummaryProvider="true" />
         <SwitchPreference
             app:key="showGroupInNotification"
             app:title="@string/show_group_in_notification" />
@@ -70,12 +77,10 @@
             app:summary="@string/metered_summary"
             app:title="@string/metered" />
         <SwitchPreference
-            app:defaultValue="true"
-            app:icon="@drawable/ic_baseline_speed_24"
-            app:key="showDirectSpeed"
-            app:summary="@string/show_direct_speed_sum"
-            app:title="@string/show_direct_speed"
-            app:useSimpleSummaryProvider="true" />
+            app:icon="@drawable/baseline_developer_board_24"
+            app:key="acquireWakeLock"
+            app:summary="@string/acquire_wake_lock_summary"
+            app:title="@string/acquire_wake_lock" />
         <moe.matsuri.nb4a.ui.LongClickListPreference
             app:defaultValue="0"
             app:entries="@array/log_level"
@@ -206,28 +211,20 @@
             app:key="connectionTestURL"
             app:title="@string/connection_test_url"
             app:useSimpleSummaryProvider="true" />
-        <SwitchPreference
-            app:icon="@drawable/baseline_developer_board_24"
-            app:key="acquireWakeLock"
-            app:summary="@string/acquire_wake_lock_summary"
-            app:title="@string/acquire_wake_lock" />
         <SwitchPreference
             app:icon="@drawable/baseline_construction_24"
             app:key="enableClashAPI"
             app:summary="@string/enable_clash_api_summary"
             app:title="@string/enable_clash_api" />
-        <EditTextPreference
-            app:defaultValue="15"
+        <SwitchPreference
+            app:defaultValue="true"
             app:icon="@drawable/ic_baseline_flip_camera_android_24"
-            app:key="tcpKeepAliveInterval"
-            app:title="@string/tcp_keep_alive_interval"
+            app:key="networkChangeResetConnections"
+            app:title="@string/network_change_reset_connections"
             app:useSimpleSummaryProvider="true" />
-        <moe.matsuri.nb4a.ui.SimpleMenuPreference
-            app:defaultValue="1.2"
-            app:entries="@array/app_tls_version"
-            app:entryValues="@array/app_tls_version"
-            app:key="appTLSVersion"
-            app:title="@string/app_tls_version"
+        <SwitchPreference
+            app:key="wakeResetConnections"
+            app:title="@string/wake_reset_connections"
             app:useSimpleSummaryProvider="true" />
         <SwitchPreference
             app:icon="@drawable/ic_action_lock_open"
@@ -236,6 +233,13 @@
         <SwitchPreference
             app:key="allowInsecureOnRequest"
             app:title="@string/allow_insecure_on_request_sum" />
+        <moe.matsuri.nb4a.ui.SimpleMenuPreference
+            app:defaultValue="1.2"
+            app:entries="@array/app_tls_version"
+            app:entryValues="@array/app_tls_version"
+            app:key="appTLSVersion"
+            app:title="@string/app_tls_version"
+            app:useSimpleSummaryProvider="true" />
         <SwitchPreference
             app:key="showBottomBar"
             app:title="@string/show_bottom_bar" />
diff --git a/libcore/box.go b/libcore/box.go
index 0852798..ae29b33 100644
--- a/libcore/box.go
+++ b/libcore/box.go
@@ -60,7 +60,9 @@ func VersionBox() string {
 func ResetAllConnections(system bool) {
 	if system {
 		conntrack.Close()
-		log.Println("[Debug] Reset system connections done")
+		log.Println("Reset system connections done")
+	} else {
+		log.Println("TODO: Reset user connections")
 	}
 }