Win 7 Network and sharing indicates I am connected and have internet access. I can not open web pages and I can not ping sites. I can connect and get to sites with xp laptop and android phone. I do not have this issue with any other locations only on roommate's network. It is dsl through a modem connected to a Netgear wireless router "wrn1000 v.2" Ipconfig shows getting dhcp. Ping always fails. web pages will not open. Any ideas.