diff --git a/src/quic/sdlan_quic_channel.erl b/src/quic/sdlan_quic_channel.erl
index 14827b4..f98ece3 100644
--- a/src/quic/sdlan_quic_channel.erl
+++ b/src/quic/sdlan_quic_channel.erl
@@ -375,8 +375,9 @@ handle_event(internal, {frame, <<?PACKET_COMMAND_ACK, Body/binary>>}, registered
         keep_state_and_data
     end;
 
-handle_event(internal, {frame, <<?PACKET_PING>>}, _StateName, State = #state{stream = Stream, ping_counter = PingCounter}) ->
+handle_event(internal, {frame, <<?PACKET_PING>>}, _StateName, State = #state{stream = Stream, ping_counter = PingCounter, client_id = ClientId}) ->
     quic_send(Stream, <<?PACKET_PONG>>),
+    logger:warning("[sdlan_channel] get ping: ~p", [ClientId]),
     {keep_state, State#state{ping_counter = PingCounter + 1}};
 
 %% 取消注册
diff --git a/src/sdlan_api.erl b/src/sdlan_api.erl
index b296dd0..ac4b861 100644
--- a/src/sdlan_api.erl
+++ b/src/sdlan_api.erl
@@ -22,8 +22,8 @@ get_all_networks() ->
             case catch jiffy:decode(Resp, [return_maps]) of
                 #{<<"result">> := Networks} ->
                     {ok, Networks};
-                #{<<"error">> := #{<<"code">> := Code, <<"message">> := Message}} ->
-                    {error, {Code, Message}};
+                #{<<"error">> := #{<<"code">> := _Code, <<"message">> := Message}} ->
+                    {error, Message};
                 _ ->
                     {error, <<"invalid json">>}
             end;
@@ -38,8 +38,8 @@ get_network(Id) when is_integer(Id) ->
             case catch jiffy:decode(Resp, [return_maps]) of
                 #{<<"result">> := Network} ->
                     {ok, Network};
-                #{<<"error">> := #{<<"code">> := Code, <<"message">> := Message}} ->
-                    {error, {Code, Message}};
+                #{<<"error">> := #{<<"code">> := _Code, <<"message">> := Message}} ->
+                    {error, Message};
                 _ ->
                     {error, <<"invalid json">>}
             end;