Update with Enterprise Gateway can't work

Hello,

I have install on my system Enterprise Gateway and Power BI Desktop. I follow these step to embed my report on my site:

1 - Start Power BI Desktop
2 - Connect to database and select table that you need
3 - Make a new dashboard with graph that you need
4 - Save a model
5 - Start Power BI Gateway if not already started
6 - Join Power BI online
7 - Import the model on the point 4
8 - Click on the "..." of dataset
9 - Click on the Report of your model

When I Click on the report i see a String that say me that with Direct query the data is always update but for me this is not true.

These are the steps that I follow:

0 - Gateway Enterprise is Enable

1 - Change data in my Database

2 - I can't see update data in my WebSite

3 - In Power BI Online click on the Report --> Refresh and the data is refreshed.

4 - Now go in my site click on the refresh of my browser but data of my report isn't update. For every graph on my report I read "Last refresh: current Date current Hour"

Where is my error?

Thanks in advance