Sorry if this has been asked before, but I've got a new project underway after a long break, I am looking at using mikrotik routers in a captive portal wireless system I would like have a payment gateway, PayPal or other for users to pay for internet access with. I believe that usermanager can do this but from reading previous posts the database gets corrupted every reboot or power failure. As you can all appreciate this is less than desirable. I was wondering what payment systems people are using. Has anyone used packetfence or similar.