Hello I have a networking problem. Whenever I try and connect to my other computer I get a username and password prompt such as the one posted below this message. The computer I am trying to connect to has Windows 7 installed and this computer has windows xp. I had this same problem when there was vista installed instead of windows 7. Everything in sharing center is marked as shared, firewalls turned off, and I am connecting wired through my router. My windows 7 computer can connect to my laptop but not the other way around. Does anyone know of a solution to this problem? Thanks in advance for your help regarding this issue.