I installed windows using parallels while i was at work and everything was fine, I could browse the internet and everything. The issue started when I brought my laptop home and started using wireless; when I did this, then I couldn't get network anymore. What can I do?
What network connector is set for Parallels to use? What kind of networking are you using? Bridged or Shared?
In situations like what supanatral is going thru, I got the network working again by either restarting Parallels (must quit windows to do this, not save state), or rebooting the Mac then launching Parallels. This method usually worked. Since Mac was moved to a new network, and by rebooting your computer or by doing a clean launch of Parallels gives both the Mac and Parallels a chance to find the new network.