From the Choose Licensing Mode dialog box, click the Add Licenses button. (If you receive an error at this point, it’s because the License Logging Service is not started.)
The New Client Access License dialog box will appear. In the Quantity field, click the up arrow once so that the quantity is 1 and click the OK button.
The Per Server Licensing Agreement dialog box will appear. Click the I Agree That: dialog box and click the OK button.
In the Choose Licensing Mode dialog box, you will see that your Per Server concurrent connections are listed as 6. Click OK.