HBO Now streaming problems - "Error occurred while loading this content"
I have a latest generation Apple TV (got it when they announced the exclusive HBO Now). I used it for several weeks without any issues, but this week it is constantly giving me the "error occured while loading this content" while streaming Game of Thrones and other HBO Now content. Sometimes it happens right away, sometimes it happens after 5 minutes. But I can't make it through an entire episode without the error. I DO NOT seem to have this issue with Netflix.
The only way to "fix" the issue is to do a hard-reboot (unplug and plug) of the Apple TV, and only then it will work for 30-40 minutes before giving me the error again. Very frustrating.
I am using Comcast high speed internet, using the modem/wireless router combo that they supplied. I have tried a Wi-Fi connection and a wired connection. The Apple TV is literally 5 feet from my router/modem. The Apple TV passes the network test about 75% of the time; other times I get an "cannot contact Apple" error.
Has anyone had this occur and what has worked? I never have issues with streaming or downloading on my computer or iPad, so I'm hesitant to blame Comcast completely (though it is tempting!).
Thanks.
AppleTV 2