text: Read this page from Apple Support, http://docs.info.apple.com/article.html?artnum=301520\n\nThe rest assumes you are using Windows XP:\n\nI would also say to make sure it is not being blocked by a Firewall, if you are just using the SP2 firewall go to Start > Control Panel > Security Center and click on the Firewall, go to the exceptions tab and make sure that iTunes is in the list, if not click Add Program and add it, if it is already in the list make sure it is checked, then click OK.\n\nIf you are on a wireless connection, right click the connection in your active tasks area (on the task bar) and click repair, that might solve your problem as well.