The data could not be saved because the server could not be contacted - Error

Hello, I'm a beginner in ligthswitch, so, I made a couple of screens and I made the database and attach to the application but when i want to save the new records shows me this error:
The data could not be saved because the server could not be contacted. Please check your network connection and try saving again.
The operation has timed out.
I verify the database, the record is saved but the application show me the error.
Please help me I have to deliver this screens today.
Thanks!
Boanerges. Mr 3: 17

Hi Elmer,
I researched this error message, I think you can try the methods below:
Increase the timeout of the connection between the client and the server
Increase  Client timeout, and it is set in the Application class in the Client Project
For further information: Error message: Unable to save data

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