diff --git a/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/ServerPacket.kt b/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/ServerPacket.kt
index 5a0032903..fc27b2985 100644
--- a/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/ServerPacket.kt
+++ b/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/ServerPacket.kt
@@ -38,7 +38,7 @@ abstract class ServerPacket(val input: DataInputStream) : Packet {
                     }
 
                     if (bytes.size > 700) {
-                        return ServerLoginResponseSucceedPacketEncrypted(stream)
+                        return ServerLoginResponseSucceedPacketEncrypted(stream, bytes.size)
                     }
 
                     return ServerLoginResponseFailedPacket(when (bytes.size) {
diff --git a/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/login/ServerLoginResponseSuccessPacket.kt b/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/login/ServerLoginResponseSuccessPacket.kt
index 4990b52e3..4104321ea 100644
--- a/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/login/ServerLoginResponseSuccessPacket.kt
+++ b/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/login/ServerLoginResponseSuccessPacket.kt
@@ -3,7 +3,6 @@ package net.mamoe.mirai.network.packet.server.login
 import net.mamoe.mirai.network.Protocol
 import net.mamoe.mirai.network.packet.server.ServerPacket
 import net.mamoe.mirai.network.packet.server.dataInputStream
-import net.mamoe.mirai.network.packet.server.readIP
 import net.mamoe.mirai.network.packet.server.readVarString
 import net.mamoe.mirai.util.TEACryptor
 import net.mamoe.mirai.util.hexToBytes
@@ -86,7 +85,7 @@ class ServerLoginResponseSuccessPacket(input: DataInputStream, val packetDataLen
     }
 }
 
-class ServerLoginResponseSucceedPacketEncrypted(input: DataInputStream) : ServerPacket(input) {
+class ServerLoginResponseSucceedPacketEncrypted(input: DataInputStream, val length: Int) : ServerPacket(input) {
     override fun decode() {
 
     }
@@ -94,7 +93,7 @@ class ServerLoginResponseSucceedPacketEncrypted(input: DataInputStream) : Server
     @ExperimentalUnsignedTypes
     fun decrypt(tgtgtKey: ByteArray): ServerLoginResponseSuccessPacket {//todo test
         this.input.skip(14)
-        return ServerLoginResponseSuccessPacket(TEACryptor.decrypt(TEACryptor.decrypt(this.input.readAllBytes().let { it.copyOfRange(0, it.size - 1) }, Protocol.shareKey.hexToBytes()), tgtgtKey).dataInputStream());
+        return ServerLoginResponseSuccessPacket(TEACryptor.decrypt(TEACryptor.decrypt(this.input.readAllBytes().let { it.copyOfRange(0, it.size - 1) }, Protocol.shareKey.hexToBytes()), tgtgtKey).dataInputStream(), length);
         //TeaDecrypt(取文本中间(data, 43, 取文本长度(data) － 45), m_0828_rec_decr_key)
     }
 }
diff --git a/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/security/ServerSessionKeyResponsePacketEncrypted.kt b/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/security/ServerSessionKeyResponsePacketEncrypted.kt
index 2dee5b468..ac50d20fd 100644
--- a/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/security/ServerSessionKeyResponsePacketEncrypted.kt
+++ b/mirai-core/src/main/java/net/mamoe/mirai/network/packet/server/security/ServerSessionKeyResponsePacketEncrypted.kt
@@ -31,7 +31,7 @@ class ServerSessionKeyResponsePacket(inputStream: DataInputStream) : ServerPacke
             else -> throw IllegalStateException()
         }
 
-        tlv0105 = "01 05 00 88 00 01 01 02 00 40 02 01 03 3C 01 03 00 00" + 取文本中间(data, 取文本长度(data) － 367, 167) ＋ “00 40 02 02 03 3C 01 03 00 00 ” ＋ 取文本中间 (data, 取文本长度 (data) － 166, 167)
+        //tlv0105 = "01 05 00 88 00 01 01 02 00 40 02 01 03 3C 01 03 00 00" + 取文本中间(data, 取文本长度(data) － 367, 167) ＋ “00 40 02 02 03 3C 01 03 00 00 ” ＋ 取文本中间 (data, 取文本长度 (data) － 166, 167)
 
     }
 }