After about 20 minutes (more than 4 flow processing intervals), switch to the monitoring screen: collect entry should be OK.

Check the UI for first graphs. Click on the Multi-tenant admin option at the top left corner and then choose the option Network management. You will find list of customers you have just provisioned. Click on one of them; if your router configuration is good and if it is sending some flows to the LiveSP server, you will begin to see graphs.