diff --git a/wshandler/wshandler.go b/wshandler/wshandler.go
index 2e56fe1..78029b3 100644
--- a/wshandler/wshandler.go
+++ b/wshandler/wshandler.go
@@ -586,9 +586,11 @@ func upgrade_core(ws *WebsocketHandler, conn *Conn, accid primitive.ObjectID, al
 			ws.connWaitGroup.Done()
 		}()
 
+		logger.Println("wshandler connected :", accid)
 		for {
 			messageType, r, err := c.innerConn.NextReader()
 			if err != nil {
+				logger.Println("wshandler NextReader err :", messageType, err)
 				if ce, ok := err.(*websocket.CloseError); ok {
 					c.closeMessage = ce.Text
 				}
@@ -610,6 +612,7 @@ func upgrade_core(ws *WebsocketHandler, conn *Conn, accid primitive.ObjectID, al
 				ws.Call(newconn.sender, string(cmd), r)
 			}
 		}
+		logger.Println("wshandler disconnected :", accid, c.closeMessage)
 		c.Conn = nil
 		if c.closeMessage != ForceShutdownCloseMessage {
 			ws.connInOutChan <- c