I think I may be dealing with two separate issues here, but let me just tell you what's going on:
When trying to connect to the internet through both a wireless router and my local area connection, my browsers give me error saying, "X is trying to connect using a proxy server that is not responding."
When I troubleshoot either of these connections, it tells me the DNS server is not responding.
My roommate's computer, also a brand-new Windows 7 laptop, is also unable to connect, as is my Android phone. My dad is also having a similar problem with his connections, though when he resets the modem it will resolve the problem for a day or two.
I have tried:
Rebooting computer, modem and wireless router
Reconfiguring the wireless router
Defining the DNS address to OpenDNS addresses and Google DNS addresses
Returning the DNS to be found automatically
Disabling/enabling both internet connections
Releasing and renewing my IP address
Talking directly with my ISP support
And countless other Googled remedies.
I would think it was only a problem with the modem - however, when my computer is connected to a new wireless network somewhere else, it still returns the same proxy error.
Am I dealing with two issues here? If so, how do I fix them?