diff --git a/net/connutil/timeout.go b/net/connutil/timeout.go
index 057c7b8c..4c4f4c78 100644
--- a/net/connutil/timeout.go
+++ b/net/connutil/timeout.go
@@ -21,7 +21,13 @@ func NewTimeout(conn net.Conn, timeout time.Duration) *TimeoutConn {
 	return &TimeoutConn{conn, timeout}
 }
 
-func (c *TimeoutConn) Write(p []byte) (n int, err error) {
+func (c *TimeoutConn) Write(p []byte) (n int, retErr error) {
+	log.Debug("start write", zap.Int("n", len(p)))
+	defer func() {
+		if retErr != nil {
+			log.Debug("conn write error", zap.Int("n", n), zap.Error(retErr))
+		}
+	}()
 	for {
 		if c.timeout != 0 {
 			if e := c.Conn.SetWriteDeadline(time.Now().Add(c.timeout)); e != nil {
@@ -47,6 +53,7 @@ func (c *TimeoutConn) Write(p []byte) (n int, err error) {
 			}
 			log.Debug("connection timed out", zap.String("remoteAddr", c.RemoteAddr().String()))
 		}
+		log.Debug("conn write", zap.Int("n", n))
 		return n, err
 	}
 }
diff --git a/net/transport/yamux/conn.go b/net/transport/yamux/conn.go
index a3406bfa..77c38764 100644
--- a/net/transport/yamux/conn.go
+++ b/net/transport/yamux/conn.go
@@ -29,7 +29,7 @@ func (y *yamuxConn) Open(ctx context.Context) (conn net.Conn, err error) {
 	if conn, err = y.Session.Open(); err != nil {
 		return
 	}
-	conn = connutil.NewTimeout(conn, time.Second*10)
+	//conn = connutil.NewTimeout(conn, time.Second*10)
 	return
 }
 
@@ -52,6 +52,6 @@ func (y *yamuxConn) Accept() (conn net.Conn, err error) {
 		}
 		return
 	}
-	conn = connutil.NewTimeout(conn, time.Second*10)
+	//conn = connutil.NewTimeout(conn, time.Second*10)
 	return
 }
diff --git a/testutil/nettest/net_test.go b/testutil/nettest/net_test.go
new file mode 100644
index 00000000..006d9dde
--- /dev/null
+++ b/testutil/nettest/net_test.go
@@ -0,0 +1,114 @@
+package nettest
+
+import (
+	"context"
+	"github.com/anyproto/any-sync/app"
+	"github.com/anyproto/any-sync/app/logger"
+	"github.com/anyproto/any-sync/coordinator/coordinatorclient"
+	"github.com/anyproto/any-sync/coordinator/coordinatorproto"
+	"github.com/anyproto/any-sync/coordinator/nodeconfsource"
+	"github.com/anyproto/any-sync/net/peerservice"
+	"github.com/anyproto/any-sync/net/pool"
+	"github.com/anyproto/any-sync/net/rpc"
+	"github.com/anyproto/any-sync/net/rpc/server"
+	"github.com/anyproto/any-sync/net/secureservice"
+	"github.com/anyproto/any-sync/net/transport/yamux"
+	"github.com/anyproto/any-sync/nodeconf"
+	"github.com/anyproto/any-sync/nodeconf/nodeconfstore"
+	"github.com/anyproto/any-sync/testutil/accounttest"
+	"github.com/stretchr/testify/require"
+	"go.uber.org/zap"
+	"net/http"
+	_ "net/http/pprof"
+	"testing"
+	"time"
+)
+
+var ctx = context.Background()
+
+func init() {
+	go http.ListenAndServe(":6061", nil)
+}
+
+func TestNet(t *testing.T) {
+	l := logger.NewNamed("test")
+	pl := pool.New()
+	a := new(app.App)
+	a.Register(&accounttest.AccountTestService{}).
+		Register(pl).
+		Register(peerservice.New()).
+		Register(yamux.New()).
+		Register(nodeconf.New()).
+		Register(nodeconfstore.New()).
+		Register(nodeconfsource.New()).
+		Register(server.New()).
+		Register(secureservice.New()).
+		Register(coordinatorclient.New()).
+		Register(&testConfig{})
+	require.NoError(t, a.Start(ctx))
+	defer a.Close(ctx)
+
+	p, err := pl.Get(ctx, "12D3KooWB4hmEo7YAdWzAaFpjyk4npkcwrPm2kRigsWu3MP9Xdmg")
+	require.NoError(t, err)
+
+	for i := 0; i < 1000000; i++ {
+		dc, err := p.AcquireDrpcConn(ctx)
+		require.NoError(t, err)
+		cl := coordinatorproto.NewDRPCCoordinatorClient(dc)
+		time.Sleep(time.Second)
+		res, err := cl.NetworkConfiguration(ctx, &coordinatorproto.NetworkConfigurationRequest{})
+		if err != nil {
+			l.Warn("req error", zap.Error(err))
+		} else {
+
+			l.Info("req success", zap.String("nid", res.NetworkId))
+		}
+		p.ReleaseDrpcConn(dc)
+	}
+
+}
+
+type testConfig struct {
+}
+
+func (t *testConfig) GetDrpc() rpc.Config {
+	return rpc.Config{
+		Stream: rpc.StreamConfig{
+			MaxMsgSizeMb: 1,
+		},
+	}
+}
+
+func (t *testConfig) GetNodeConfStorePath() string {
+	return "/tmp"
+}
+
+func (t *testConfig) GetNodeConf() nodeconf.Configuration {
+	return nodeconf.Configuration{
+		Id:        "",
+		NetworkId: "",
+		Nodes: []nodeconf.Node{
+			{
+				PeerId:    "12D3KooWB4hmEo7YAdWzAaFpjyk4npkcwrPm2kRigsWu3MP9Xdmg",
+				Addresses: []string{"ec2-3-65-13-48.eu-central-1.compute.amazonaws.com:443"},
+				Types:     []nodeconf.NodeType{nodeconf.NodeTypeTree},
+			},
+		},
+		CreationTime: time.Now(),
+	}
+}
+
+func (t *testConfig) GetYamux() yamux.Config {
+	return yamux.Config{
+		WriteTimeoutSec: 10,
+		DialTimeoutSec:  10,
+	}
+}
+
+func (t *testConfig) Init(a *app.App) (err error) {
+	return nil
+}
+
+func (t *testConfig) Name() (name string) {
+	return "config"
+}