diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt
index 9a7a8b0ec..58ff8a668 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt
@@ -243,6 +243,28 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
         bot.logger.info("====================Mirai Bot List初始化完毕====================")
 
         bot.firstLoginSucceed = true
+
+        launch {
+            while (this.isActive) {
+                delay(bot.configuration.heartbeatPeriodMillis)
+                var lastException: Exception?
+                try {
+                    check(
+                        StatSvc.GetOnlineStatus(bot.client)
+                            .sendAndExpect<StatSvc.GetOnlineStatus.Response>(
+                                timeoutMillis = bot.configuration.heartbeatTimeoutMillis,
+                                retry = 1
+                            ) is StatSvc.GetOnlineStatus.Response.Success
+                    )
+                    continue
+                } catch (e: Exception) {
+                    lastException = e
+                }
+                delay(bot.configuration.firstReconnectDelayMillis)
+                close()
+                bot.tryReinitializeNetworkHandler(lastException)
+            }
+        }
     }
 
 
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/StatSvcGetOnline.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/StatSvcGetOnline.kt
new file mode 100644
index 000000000..8faead074
--- /dev/null
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/StatSvcGetOnline.kt
@@ -0,0 +1,29 @@
+package net.mamoe.mirai.qqandroid.network.protocol.data.proto
+
+import kotlinx.serialization.SerialId
+import kotlinx.serialization.Serializable
+import net.mamoe.mirai.qqandroid.io.ProtoBuf
+
+class StatSvcGetOnline {
+    @Serializable
+    class Instance(
+        @SerialId(1) val instanceId: Int = 0,
+        @SerialId(2) val clientType: Int = 0
+    ) : ProtoBuf
+
+    @Serializable
+    class ReqBody(
+        @SerialId(1) val uin: Long = 0L,
+        @SerialId(2) val appid: Int = 0
+    ) : ProtoBuf
+
+    @Serializable
+    class RspBody(
+        @SerialId(1) val errorCode: Int = 0,
+        @SerialId(2) val errorMsg: String = "",
+        @SerialId(3) val uin: Long = 0L,
+        @SerialId(4) val appid: Int = 0,
+        @SerialId(5) val timeInterval: Int = 0,
+        @SerialId(6) val msgInstances: List<StatSvcGetOnline.Instance>? = null
+    ) : ProtoBuf
+}
\ No newline at end of file
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt
index 04a87cdee..a9cfe3046 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt
@@ -112,6 +112,7 @@ internal object KnownPacketFactories {
     object OutgoingFactories : List<OutgoingPacketFactory<*>> by mutableListOf(
         LoginPacket,
         StatSvc.Register,
+        StatSvc.GetOnlineStatus,
         MessageSvc.PbGetMsg,
         MessageSvc.PushForceOffline,
         MessageSvc.PbSendMsg,
diff --git a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/StatSvc.kt b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/StatSvc.kt
index 8113708a5..a66ce7431 100644
--- a/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/StatSvc.kt
+++ b/mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/login/StatSvc.kt
@@ -3,12 +3,11 @@ package net.mamoe.mirai.qqandroid.network.protocol.packet.login
 import kotlinx.io.core.ByteReadPacket
 import net.mamoe.mirai.data.Packet
 import net.mamoe.mirai.qqandroid.QQAndroidBot
-import net.mamoe.mirai.qqandroid.io.serialization.ProtoBufWithNullableSupport
-import net.mamoe.mirai.qqandroid.io.serialization.jceRequestSBuffer
-import net.mamoe.mirai.qqandroid.io.serialization.writeJceStruct
+import net.mamoe.mirai.qqandroid.io.serialization.*
 import net.mamoe.mirai.qqandroid.network.QQAndroidClient
 import net.mamoe.mirai.qqandroid.network.protocol.data.jce.RequestPacket
 import net.mamoe.mirai.qqandroid.network.protocol.data.jce.SvcReqRegister
+import net.mamoe.mirai.qqandroid.network.protocol.data.proto.StatSvcGetOnline
 import net.mamoe.mirai.qqandroid.network.protocol.packet.OutgoingPacket
 import net.mamoe.mirai.qqandroid.network.protocol.packet.OutgoingPacketFactory
 import net.mamoe.mirai.qqandroid.network.protocol.packet.buildLoginOutgoingPacket
@@ -33,6 +32,46 @@ internal enum class RegPushReason {
 }
 
 internal class StatSvc {
+    internal object GetOnlineStatus : OutgoingPacketFactory<GetOnlineStatus.Response>("StatSvc.GetOnlineStatus") {
+
+        internal sealed class Response : Packet {
+            override fun toString(): String = "StatSvc.GetOnlineStatus.Response"
+
+            object Success : Response() {
+                override fun toString(): String {
+                    return "StatSvc.GetOnlineStatus.Response.Success"
+                }
+            }
+
+            class Failed(val errno: Int, val message: String) : Response() {
+                override fun toString(): String {
+                    return "StatSvc.GetOnlineStatus.Response.Failed(errno=$errno, message=$message)"
+                }
+            }
+        }
+
+        operator fun invoke(
+            client: QQAndroidClient
+        ): OutgoingPacket = buildLoginOutgoingPacket(client, 1) {
+            writeProtoBuf(
+                StatSvcGetOnline.ReqBody.serializer(), StatSvcGetOnline.ReqBody(
+                    uin = client.uin,
+                    appid = 0
+                )
+            )
+        }
+
+        override suspend fun ByteReadPacket.decode(bot: QQAndroidBot): Response {
+            val resp = readProtoBuf(StatSvcGetOnline.RspBody.serializer())
+            return if (resp.errorCode != 0) {
+                Response.Failed(resp.errorCode, resp.errorMsg)
+            } else {
+                Response.Success
+            }
+        }
+    }
+
+
     internal object Register : OutgoingPacketFactory<Register.Response>("StatSvc.register") {
 
         internal object Response : Packet {
diff --git a/mirai-core-qqandroid/src/jvmTest/kotlin/test/ProtoBufDataClassGenerator.kt b/mirai-core-qqandroid/src/jvmTest/kotlin/test/ProtoBufDataClassGenerator.kt
index 5a4bcbc23..0cb54c6a2 100644
--- a/mirai-core-qqandroid/src/jvmTest/kotlin/test/ProtoBufDataClassGenerator.kt
+++ b/mirai-core-qqandroid/src/jvmTest/kotlin/test/ProtoBufDataClassGenerator.kt
@@ -16,7 +16,7 @@ fun main() {
     println(
         File(
             """
-            /Users/jiahua.liu/Desktop/QQAndroid-F/app/src/main/java/tencent/im/oidb/cmd0x8a0/
+            E:\Projects\QQAndroidFF\app\src\main\java\tencent\im\statsvc\getonline
         """.trimIndent()
         )
             .generateUnarrangedClasses().toMutableList().arrangeClasses().joinToString("\n\n")
diff --git a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/BotConfiguration.kt b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/BotConfiguration.kt
index 07e795fab..8f213b87e 100644
--- a/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/BotConfiguration.kt
+++ b/mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/BotConfiguration.kt
@@ -49,10 +49,10 @@ class BotConfiguration {
     /**
      * 心跳周期. 过长会导致被服务器断开连接.
      */
-    var heartbeatPeriodMillis: Long = 60.secondsToMillis
+    var heartbeatPeriodMillis: Long = 30.secondsToMillis
     /**
      * 每次心跳时等待结果的时间.
-     * 一旦心跳超时, 整个网络服务将会重启 (将消耗约 1s). 除正在进行的任务 (如图片上传) 会被中断外, 事件和插件均不受影响.
+     * 一旦心跳超时, 整个网络服务将会重启 (将消耗约 5s). 除正在进行的任务 (如图片上传) 会被中断外, 事件和插件均不受影响.
      */
     var heartbeatTimeoutMillis: Long = 2.secondsToMillis
     /**