HELP ME PLEASE

hello or good evening depending on when you see my email. ebenezer I call, I mounted a mikrotik router with my pc I configure the local network and hotspot works well too, but I have a problem when I launch my browser captive portal displays well I connects with the default admin account ca goes well, but only when I connect with account number that I create in userman it returns me the following message: Radius sever not responding, I want you to tell me where I have not done well