NEED FOR SPEED MOST WANTED AUTOLOG ERROR

The problem is as follows .. When you get on a public server can not play more than 5 minutes for me off the server and tells me ' You are not connected to autologous ' . But there's more. If I do a server and invite friends to my server , the error does not appear, quiet game , if I do my friends again receive no error goes ok , but when I get on a public server me out and gives me error .. ' ' You is not connected to autologous