diff --git a/common/mux/client.go b/common/mux/client.go
index df74ef17..9df339e0 100644
--- a/common/mux/client.go
+++ b/common/mux/client.go
@@ -334,9 +334,13 @@ func (m *ClientWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.Buffere
 
 	rr := s.NewReader(reader, &meta.Target)
 	err := buf.Copy(rr, s.output)
+	if err != nil {
+		s.Close(false)
+	}
 	if err != nil && buf.IsWriteError(err) {
 		errors.LogInfoInner(context.Background(), err, "failed to write to downstream. closing session ", s.ID)
-		s.Close(false)
+		closingWriter := NewResponseWriter(s.ID, m.link.Writer, protocol.TransferTypeStream)
+		closingWriter.Close()
 		return buf.Copy(rr, buf.Discard)
 	}
 
diff --git a/common/mux/server.go b/common/mux/server.go
index 8fc0ae09..2e009e2c 100644
--- a/common/mux/server.go
+++ b/common/mux/server.go
@@ -201,11 +201,12 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 			transferType: protocol.TransferTypePacket,
 			XUDP:         x,
 		}
-		go handle(ctx, x.Mux, w.link.Writer)
-		x.Status = Active
 		if !w.sessionManager.Add(x.Mux) {
 			x.Mux.Close(false)
+			return errors.New("failed to add session.")
 		}
+		x.Status = Active
+		go handle(ctx, x.Mux, w.link.Writer)
 		return nil
 	}
 
@@ -226,18 +227,26 @@ func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata,
 	if meta.Target.Network == net.Network_UDP {
 		s.transferType = protocol.TransferTypePacket
 	}
-	w.sessionManager.Add(s)
+	if !w.sessionManager.Add(s) {
+		s.Close(false)
+		return errors.New("failed to add session.")
+	}
 	go handle(ctx, s, w.link.Writer)
 	if !meta.Option.Has(OptionData) {
 		return nil
 	}
 
 	rr := s.NewReader(reader, &meta.Target)
-	if err := buf.Copy(rr, s.output); err != nil {
-		buf.Copy(rr, buf.Discard)
-		return s.Close(false)
+	err = buf.Copy(rr, s.output)
+	if err != nil {
+		s.Close(false)
 	}
-	return nil
+	if err != nil && buf.IsWriteError(err) {
+		closingWriter := NewResponseWriter(s.ID, w.link.Writer, protocol.TransferTypeStream)
+		closingWriter.Close()
+		return buf.Copy(rr, buf.Discard)
+	}
+	return err
 }
 
 func (w *ServerWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.BufferedReader) error {
@@ -256,10 +265,13 @@ func (w *ServerWorker) handleStatusKeep(meta *FrameMetadata, reader *buf.Buffere
 
 	rr := s.NewReader(reader, &meta.Target)
 	err := buf.Copy(rr, s.output)
-
+	if err != nil {
+		s.Close(false)
+	}
 	if err != nil && buf.IsWriteError(err) {
 		errors.LogInfoInner(context.Background(), err, "failed to write to downstream writer. closing session ", s.ID)
-		s.Close(false)
+		closingWriter := NewResponseWriter(s.ID, w.link.Writer, protocol.TransferTypeStream)
+		closingWriter.Close()
 		return buf.Copy(rr, buf.Discard)
 	}
 
@@ -304,10 +316,11 @@ func (w *ServerWorker) handleFrame(ctx context.Context, reader *buf.BufferedRead
 }
 
 func (w *ServerWorker) run(ctx context.Context) {
-	input := w.link.Reader
-	reader := &buf.BufferedReader{Reader: input}
+	reader := &buf.BufferedReader{Reader: w.link.Reader}
 
 	defer w.sessionManager.Close()
+	defer common.Close(w.link.Writer)
+	defer common.Interrupt(w.link.Reader)
 
 	for {
 		select {
@@ -318,7 +331,6 @@ func (w *ServerWorker) run(ctx context.Context) {
 			if err != nil {
 				if errors.Cause(err) != io.EOF {
 					errors.LogInfoInner(ctx, err, "unexpected EOF")
-					common.Interrupt(input)
 				}
 				return
 			}