diff --git a/apps/iot/src/iot_host.erl b/apps/iot/src/iot_host.erl
index 200a2dd..ad58207 100644
--- a/apps/iot/src/iot_host.erl
+++ b/apps/iot/src/iot_host.erl
@@ -253,14 +253,14 @@ handle_info({timeout, _, ping_ticker}, State = #state{uuid = UUID, is_answered =
 
     case NextStatus of
         keep_status ->
-            {noreply, State};
+            {noreply, State#state{is_answered = false}};
         {next_status, NStatus} ->
             case host_bo:change_status(UUID, NStatus) of
                 {ok, _} ->
-                    {noreply, State#state{status = NStatus}};
+                    {noreply, State#state{status = NStatus, is_answered = false}};
                 {error, Reason} ->
                     lager:warning("[iot_host] change host status of uuid: ~p, error: ~p", [UUID, Reason]),
-                    {noreply, State}
+                    {noreply, State#state{is_answered = false}}
             end
     end;