I have connected my broadband connection to one computer its working fine. It has windows 7. When I am connecting it in other computer its showing error 691. It has windows 8. I have ISP with username and password. I am providing correct username and password in both the machine. One is getting connected and other is not. What may be the problem??? It is a direct broadband LAN cable connecting to the LAN port of computer no router or modem in between.