diff --git a/lib/tun2/server.go b/lib/tun2/server.go
index 64472d3..50fd649 100644
--- a/lib/tun2/server.go
+++ b/lib/tun2/server.go
@@ -170,6 +170,7 @@ func (s *Server) ListenAndServe() error {
 					"value":  failureChance,
 				})
 			}
+			s.connlock.Unlock()
 		}
 	}()