diff --git a/listener/tproxy/packet.go b/listener/tproxy/packet.go
index 2a274f61..4967adc6 100644
--- a/listener/tproxy/packet.go
+++ b/listener/tproxy/packet.go
@@ -78,7 +78,7 @@ func createOrGetLocalConn(rAddr, lAddr net.Addr, in chan<- C.PacketAdapter, natT
 			}()
 			conn, err := listenLocalConn(rAddr, lAddr, in, natTable)
 			if err != nil {
-				log.Errorln("listenLocalConn failed with error: %s, packet loss", err.Error())
+				log.Errorln("listenLocalConn failed with error: %s, packet loss (rAddr[%T]=%s lAddr[%T]=%s)", err.Error(), rAddr, remote, lAddr, local)
 				return nil, err
 			}
 			natTable.AddLocalConn(local, remote, conn)