diff --git a/mirai-core/src/commonMain/kotlin/AbstractBot.kt b/mirai-core/src/commonMain/kotlin/AbstractBot.kt
index b054556b1..6654b53c7 100644
--- a/mirai-core/src/commonMain/kotlin/AbstractBot.kt
+++ b/mirai-core/src/commonMain/kotlin/AbstractBot.kt
@@ -25,6 +25,7 @@ import net.mamoe.mirai.internal.network.components.SsoProcessor
 import net.mamoe.mirai.internal.network.handler.NetworkHandler
 import net.mamoe.mirai.internal.network.handler.selector.NetworkException
 import net.mamoe.mirai.internal.network.impl.netty.asCoroutineExceptionHandler
+import net.mamoe.mirai.network.LoginFailedException
 import net.mamoe.mirai.supervisorJob
 import net.mamoe.mirai.utils.*
 import kotlin.collections.set
@@ -123,6 +124,9 @@ internal abstract class AbstractBot constructor(
             if (!components[SsoProcessor].firstLoginSucceed) {
                 this.close(cause) // failed to do first login.
             }
+            if (cause is LoginFailedException && cause.killBot) {
+                close(cause)
+            }
             throw cause
         }
         logger.info { "Bot login successful." }
diff --git a/mirai-core/src/commonMain/kotlin/network/handler/selector/AbstractKeepAliveNetworkHandlerSelector.kt b/mirai-core/src/commonMain/kotlin/network/handler/selector/AbstractKeepAliveNetworkHandlerSelector.kt
index 633ded59e..ccb1d849b 100644
--- a/mirai-core/src/commonMain/kotlin/network/handler/selector/AbstractKeepAliveNetworkHandlerSelector.kt
+++ b/mirai-core/src/commonMain/kotlin/network/handler/selector/AbstractKeepAliveNetworkHandlerSelector.kt
@@ -15,6 +15,8 @@ import kotlinx.coroutines.yield
 import net.mamoe.mirai.internal.network.handler.NetworkHandler
 import net.mamoe.mirai.internal.network.handler.NetworkHandlerFactory
 import net.mamoe.mirai.internal.network.handler.logger
+import net.mamoe.mirai.network.LoginFailedException
+import net.mamoe.mirai.network.RetryLaterException
 import net.mamoe.mirai.utils.ExceptionCollector
 import net.mamoe.mirai.utils.systemProp
 import net.mamoe.mirai.utils.toLongUnsigned
@@ -85,6 +87,13 @@ internal abstract class AbstractKeepAliveNetworkHandlerSelector<H : NetworkHandl
             suspend fun H.resumeInstanceCatchingException() {
                 try {
                     resumeConnection() // once finished, it should has been LOADING or OK
+                } catch (e: LoginFailedException) {
+                    if (e is RetryLaterException) {
+                        close(e)
+                        return
+                    }
+                    // LoginFailedException is not resumable
+                    exceptionCollector.collectThrow(e)
                 } catch (e: Exception) {
                     close(e)
                     // exception will be collected by `exceptionCollector.collectException(current.getLastFailure())`
diff --git a/mirai-core/src/commonTest/kotlin/network/framework/AbstractRealNetworkHandlerTest.kt b/mirai-core/src/commonTest/kotlin/network/framework/AbstractRealNetworkHandlerTest.kt
index 442d03c67..c6c3697e6 100644
--- a/mirai-core/src/commonTest/kotlin/network/framework/AbstractRealNetworkHandlerTest.kt
+++ b/mirai-core/src/commonTest/kotlin/network/framework/AbstractRealNetworkHandlerTest.kt
@@ -129,9 +129,10 @@ internal abstract class AbstractRealNetworkHandlerTest<H : NetworkHandler> : Abs
         // set(StateObserver, bot.run { stateObserverChain() })
     }
 
-    open fun createHandler(): H = factory.create(createContext(), address)
+    open fun createHandler(): NetworkHandler = factory.create(createContext(), address)
     open fun createContext(): NetworkHandlerContextImpl =
         NetworkHandlerContextImpl(bot, networkLogger, bot.createNetworkLevelComponents())
+
     val address: InetSocketAddress = InetSocketAddress.createUnresolved("localhost", 123)
 
     ///////////////////////////////////////////////////////////////////////////
@@ -147,4 +148,10 @@ internal abstract class AbstractRealNetworkHandlerTest<H : NetworkHandler> : Abs
     }
 
     val eventDispatcher get() = bot.components[EventDispatcher]
-}
\ No newline at end of file
+}
+
+internal fun AbstractRealNetworkHandlerTest<*>.setSsoProcessor(action: suspend SsoProcessor.(handler: NetworkHandler) -> Unit) {
+    overrideComponents[SsoProcessor] = object : SsoProcessor by overrideComponents[SsoProcessor] {
+        override suspend fun login(handler: NetworkHandler) = action(handler)
+    }
+}
diff --git a/mirai-core/src/commonTest/kotlin/network/impl/netty/AbstractNettyNHTest.kt b/mirai-core/src/commonTest/kotlin/network/impl/netty/AbstractNettyNHTest.kt
index 3d468b40c..be95292a1 100644
--- a/mirai-core/src/commonTest/kotlin/network/impl/netty/AbstractNettyNHTest.kt
+++ b/mirai-core/src/commonTest/kotlin/network/impl/netty/AbstractNettyNHTest.kt
@@ -93,9 +93,3 @@ internal abstract class AbstractNettyNHTest : AbstractRealNetworkHandlerTest<Tes
             }
         }
 }
-
-internal fun AbstractNettyNHTest.setSsoProcessor(action: suspend SsoProcessor.(handler: NetworkHandler) -> Unit) {
-    overrideComponents[SsoProcessor] = object : SsoProcessor by overrideComponents[SsoProcessor] {
-        override suspend fun login(handler: NetworkHandler) = action(handler)
-    }
-}
\ No newline at end of file
diff --git a/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyBotNormalLoginTest.kt b/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyBotNormalLoginTest.kt
index 4fb7129dc..3c1e5015b 100644
--- a/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyBotNormalLoginTest.kt
+++ b/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyBotNormalLoginTest.kt
@@ -10,29 +10,47 @@
 package net.mamoe.mirai.internal.network.impl.netty
 
 import kotlinx.coroutines.awaitCancellation
+import kotlinx.coroutines.isActive
+import net.mamoe.mirai.internal.network.framework.setSsoProcessor
+import net.mamoe.mirai.internal.network.handler.NetworkHandler
+import net.mamoe.mirai.internal.network.handler.selector.KeepAliveNetworkHandlerSelector
+import net.mamoe.mirai.internal.network.handler.selector.SelectorNetworkHandler
 import net.mamoe.mirai.internal.test.runBlockingUnit
+import net.mamoe.mirai.network.CustomLoginFailedException
 import org.junit.jupiter.api.Test
 import java.io.IOException
 import kotlin.test.assertFailsWith
+import kotlin.test.assertFalse
 
 internal class NettyBotNormalLoginTest : AbstractNettyNHTest() {
-    class CusLoginException(message: String?) : RuntimeException(message)
+    val selector = KeepAliveNetworkHandlerSelector {
+        super.factory.create(createContext(), address)
+    }
+
+    override fun createHandler(): NetworkHandler {
+        return SelectorNetworkHandler(selector)
+    }
+
+    class CusLoginException(message: String?) : CustomLoginFailedException(true, message)
 
     @Test
     fun `test login fail`() = runBlockingUnit {
         setSsoProcessor { throw CusLoginException("A") }
         assertFailsWith<CusLoginException>("A") { bot.login() }
+        assertFalse(bot.isActive)
     }
 
     @Test
     fun `test network broken`() = runBlockingUnit {
+        var retryCounter = 0
         setSsoProcessor {
             eventDispatcher.joinBroadcast()
+            if (retryCounter++ >= 15) {
+                return@setSsoProcessor
+            }
             channel.pipeline().fireExceptionCaught(IOException("TestNetworkBroken"))
             awaitCancellation() // receive exception from "network"
         }
-        assertFailsWith<IOException>("TestNetworkBroken") {
-            bot.login()
-        }
+        bot.login()
     }
 }
diff --git a/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyHandlerEventTest.kt b/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyHandlerEventTest.kt
index 1545f7048..9bb7cb9b3 100644
--- a/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyHandlerEventTest.kt
+++ b/mirai-core/src/commonTest/kotlin/network/impl/netty/NettyHandlerEventTest.kt
@@ -17,6 +17,7 @@ import net.mamoe.mirai.event.events.BotOnlineEvent
 import net.mamoe.mirai.event.events.BotReloginEvent
 import net.mamoe.mirai.internal.network.components.SsoProcessor
 import net.mamoe.mirai.internal.network.framework.eventDispatcher
+import net.mamoe.mirai.internal.network.framework.setSsoProcessor
 import net.mamoe.mirai.internal.network.framework.ssoProcessor
 import net.mamoe.mirai.internal.network.handler.NetworkHandler.State.*
 import net.mamoe.mirai.internal.test.assertEventBroadcasts
diff --git a/mirai-core/src/commonTest/kotlin/test/initPlatform.common.kt b/mirai-core/src/commonTest/kotlin/test/initPlatform.common.kt
index 58decdd3b..74db0e1e8 100644
--- a/mirai-core/src/commonTest/kotlin/test/initPlatform.common.kt
+++ b/mirai-core/src/commonTest/kotlin/test/initPlatform.common.kt
@@ -24,7 +24,8 @@ abstract class AbstractTest {
     init {
         initPlatform()
 
-        System.setProperty("mirai.debug.network.state.observer.logging", "false")
+        System.setProperty("mirai.debug.network.packet.logger", "true")
+        System.setProperty("mirai.debug.network.state.observer.logging", "true")
         System.setProperty("mirai.debug.network.show.all.components", "true")
         System.setProperty("mirai.debug.network.show.components.creation.stacktrace", "true")