ATV Not Preparing TV

For about 3 weeks now, when I start channels on my Apple TV it does not start up as normal. It does not show the "Preparing your TV" instead I'll see a message that the server can't be found briefly than it opens the On Now menu. The program guide will not be beyond a day or two. If I reboot the ATV it works normal, until the next day. My other client (Niveda Shield) works without any problem. I have deleted the app from the ATV rebooted it to clear the memory and installed a fresh copy of the app. Any suggestions greatly appreached.

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