Internet connection problem

Internet connection switches to other non-working Internet connection sometimes? Help?
Intel Core 2 Quad Q9300 @ 2.5GHZ
geforce gt 220
4gb ram
vista 32 business
Answer #1
bump
Answer #2
Did you mean that your connection drops randomly?
– It could be your PC. Test your connection from another PC on your network and see if the problem persists.
– It could be your modem/router. If there’re any new firmware updates for your specific router/modem try applying them and see if that makes any difference.
– It could just be bad line from your ISP. You’ll need to sort this type of problem out with them.
Answer #3
No, it switches to a non-working Internet connection, i.e. an Internet connection that’s not connected to the Internet.