My roommate just switched over to an internet router that requires a password. I typed in the password, and it achieves "Limited Connectivity." After running the diagnostics originally, it said that I had an IP address error. After trying a few of the ideas posted on other forums, it now says that windows can't find a solution to the problem. My XP laptop and phone can connect, but not my Windows 7 desktop. I attached a JPG of my ipconfig as suggested by others. I know this question has been asked 1.23 million times, but I can't find anything that works. Help?