Datasnap Rest Server Callback Disconnected after 1 menit

Hi, 

I've setup a Rest Server as apache module, and successfuly connect the server using Rest Client Connection. But i want to add Callback capability. Here is the code

procedure TCSClass_RestClient.PrepareCallback;
var
  sUniqueID : string;
  sUniqueCallbackID : string;
begin
  //Create Callback
  sUniqueID := TDSTunnelSession.GenerateSessionId;
  sUniqueCallbackID := TDSTunnelSession.GenerateSessionId;
  FRestManager := TDSRestClientChannel.Create(
    sUniqueID,
    FChannelName,
    FRestClient);
  FRestManager.OnChannelStateChange := Callback_HandleChannelStateChange;
  FRestCallback := TDSRestClientCallback.Create(
    FRestManager,
    sUniqueCallbackID,
    function(AValue: TJSONValue; ADataType: string): Boolean
    begin
      if Assigned(FOnRestClient_ReceiveData) then
      begin
        FOnRestClient_ReceiveData(AValue, ADataType);
      end;
      Result := true;
    end
  );

  if FRestManager.Connected then
  begin
    FRestManager.RegisterCallback(FRestCallback);
  end
  else
  begin
    FRestManager.Connect(FRestCallback);
  end;
end;

This code is successfuly connect to the Rest Callback Server, but the problem is that the server disconnect after about 1 minute with an error message of "First chance exception at $75129617. Exception class ENetHTTPClientException with message 'Error receiving data: (12002) The operation timed out'. Process OperatorAssistant.exe (2212)", if i use the CallbackStateChange event, it return an EventType of rChannelClosedByServer. I tried to reconnect to callback server by calling the above function every time server disconnect the callback server, but it is always disconnected every 1 minute.

I set DSServerClass.LifeCycle to Invocation, DSServer.ChannelResponseTime as default = 30.000. So what is the problem and what is the configuration i need to set to make the callback server did not forcely close the callback connection other than a network failure

And one more thing, how to property disconnect a callback connection from the client, currently i use this code :

if FRestCallback <> nil then
begin
  FRestManager.UnregisterCallback(FRestCallback);
end;

I use Delphi Tokyo 10.2.3

Thanks for helping

Iwan