I installed ATV Flash about a week ago. Yesterday, it suddenly decided not to be connected to the internet anymore. It is still connected to my wireless router which is working fine. Everything else in the house is connected just fine. However, my ATV won’t do anything which requires outside connectivity (ie iTunes Store, Updates, etc.). I restored to factory settings, and still no joy. I can sync it with iTunes on my computer wirelessly without a problem. Not sure what the to do. Does anyone have any suggestions?

You may try checking the network status through the Settings --> General --> Network menu.

Are you able to browse the web through the ‘Browser’ menu?