Comcast Activation Screen on iPad
iPad wifi + 3G 64mb
iPad wifi + 3G 64mb
it's the DNS settings for that wireless router - I battled with this for some time until finding this site:
http://techinch.com/2011/02/04/change-your-dns-settings-on-iphone-ipod-touch-and -ipad/
Ever since I switched to a "slower" internet connection with Comcast (6Mbps to 3Mbps) I had this same problem and searched for several hours on it until finding this. The slower Comcast (which works fine for me) I had to change the DNS server from automatic to "4.2.2.1, 8.8.8.8" First one being preferred and second one being aternate. I had to do this on my home computer too. Now I don't get that stupid Comcast Xfinity activation screen only.
Comcast Activation Screen on iPad