diff --git a/bridge/bridge.go b/bridge/bridge.go
index 3914a8d..cab4c78 100755
--- a/bridge/bridge.go
+++ b/bridge/bridge.go
@@ -71,6 +71,7 @@ func NewTunnel(tunnelPort int, tunnelType string, ipVerify bool, runList map[int
 }
 
 func (s *Bridge) StartTunnel() error {
+	go s.linkCleanSession()
 	var err error
 	if s.tunnelType == "kcp" {
 		s.kcpListener, err = kcp.ListenWithOptions(":"+strconv.Itoa(s.TunnelPort), nil, 150, 3)
diff --git a/client/client.go b/client/client.go
index 1175aa9..916bb1a 100755
--- a/client/client.go
+++ b/client/client.go
@@ -38,6 +38,7 @@ func NewRPClient(svraddr string, vKey string, bridgeConnType string, proxyUrl st
 
 //start
 func (s *TRPClient) Start() {
+	go s.linkCleanSession()
 retry:
 	c, err := NewConn(s.bridgeConnType, s.vKey, s.svrAddr, common.WORK_MAIN, s.proxyUrl)
 	if err != nil {