diff --git a/services/tunnel_bridge.go b/services/tunnel_bridge.go
index 16967cc..8125cf0 100644
--- a/services/tunnel_bridge.go
+++ b/services/tunnel_bridge.go
@@ -85,7 +85,12 @@ func (s *TunnelBridge) Clean() {
 func (s *TunnelBridge) callback(inConn net.Conn) {
 	var err error
 	//log.Printf("connection from %s ", inConn.RemoteAddr())
-	sess, err := smux.Server(inConn, nil)
+	sess, err := smux.Server(inConn, &smux.Config{
+		KeepAliveInterval: 10 * time.Second,
+		KeepAliveTimeout:  time.Duration(*s.cfg.Timeout) * time.Second,
+		MaxFrameSize:      4096,
+		MaxReceiveBuffer:  4194304,
+	})
 	if err != nil {
 		log.Printf("new mux server conn error,ERR:%s", err)
 		return
diff --git a/services/tunnel_client.go b/services/tunnel_client.go
index 6c54859..fa3c4e4 100644
--- a/services/tunnel_client.go
+++ b/services/tunnel_client.go
@@ -135,7 +135,12 @@ func (s *TunnelClient) GetConn() (conn net.Conn, err error) {
 	_conn, err = utils.TlsConnectHost(*s.cfg.Parent, *s.cfg.Timeout, s.cfg.CertBytes, s.cfg.KeyBytes, nil)
 	if err == nil {
 		conn = net.Conn(&_conn)
-		c, e := smux.Client(conn, nil)
+		c, e := smux.Client(conn, &smux.Config{
+			KeepAliveInterval: 10 * time.Second,
+			KeepAliveTimeout:  time.Duration(*s.cfg.Timeout) * time.Second,
+			MaxFrameSize:      4096,
+			MaxReceiveBuffer:  4194304,
+		})
 		if e != nil {
 			log.Printf("new mux client conn error,ERR:%s", e)
 			err = e
diff --git a/services/tunnel_server.go b/services/tunnel_server.go
index 09a6867..a977332 100644
--- a/services/tunnel_server.go
+++ b/services/tunnel_server.go
@@ -282,7 +282,12 @@ func (s *TunnelServer) GetConn() (conn net.Conn, err error) {
 	_conn, err = utils.TlsConnectHost(*s.cfg.Parent, *s.cfg.Timeout, s.cfg.CertBytes, s.cfg.KeyBytes, nil)
 	if err == nil {
 		conn = net.Conn(&_conn)
-		c, e := smux.Client(conn, nil)
+		c, e := smux.Client(conn, &smux.Config{
+			KeepAliveInterval: 10 * time.Second,
+			KeepAliveTimeout:  time.Duration(*s.cfg.Timeout) * time.Second,
+			MaxFrameSize:      4096,
+			MaxReceiveBuffer:  4194304,
+		})
 		if e != nil {
 			log.Printf("new mux client conn error,ERR:%s", e)
 			err = e