diff --git a/server/channelserver/sys_session.go b/server/channelserver/sys_session.go
index 86552f611..d7f41c071 100644
--- a/server/channelserver/sys_session.go
+++ b/server/channelserver/sys_session.go
@@ -154,21 +154,13 @@ func (s *Session) QueueAck(ackHandle uint32, data []byte) {
 
 func (s *Session) sendLoop() {
 	var pkt packet
-	var buffer []byte
 	for {
 		if s.closed {
 			return
 		}
-		for len(s.sendPackets) > 0 {
-			pkt = <-s.sendPackets
-			buffer = append(buffer, pkt.data...)
-		}
-		if len(buffer) > 0 {
-			err := s.cryptConn.SendPacket(append(buffer, []byte{0x00, 0x10}...))
-			if err != nil {
-				s.logger.Warn("Failed to send packet")
-			}
-			buffer = buffer[:0]
+		err := s.cryptConn.SendPacket(append(pkt.data, []byte{0x00, 0x10}...))
+		if err != nil {
+			s.logger.Warn("Failed to send packet")
 		}
 		time.Sleep(time.Duration(_config.ErupeConfig.LoopDelay) * time.Millisecond)
 	}