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SAP B1 error code: -131, error Message: connection to license server failed

Dear All;

I had the following case, and thought of sharing the solution with you:

I got the following two error messages:

Error Message in program class: you are not connected to a company


Error Code: -131, ErrorMessage: Connection to license server failed; if license server address is invalid, correct it; if TAO NT naming service stopped, activate it and restart License Manager


I was sure that all SAP B1, and MS SQL services are up, and running on the server side so I knew this is an issue related to the client side.

The solution was checking the file “b1-local-machine” which is located it under “C:\program files\SAP\SAP Business One DI API\Conf”

The value of the server ip was “localhost”, and it should be the ip of my production server instead.

Hope that was helpful.

Best Regards

~Amal Aloun

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