I had problems for a week after the forum migrated. I changed my DNS settings on my iPad to google and everything has been perfect since. You can change DNS for wireless connection by going into settings, wifi and then clicking on the blue arrow to access the settings. The settings are not global, so if you change the DNS it will only be saved for that particular wifi connection. The google DNS are 8.8.8.8 and 8.8.4.4 if I remember correctly.