Apple TV 3rd generation stuttering on buffer

I have only 14 days to return so I hope it's resolved soon.

How well does a properly functioning ATV handle streaming video on an iOS device via airplay?

So what's going on? Any solutions?

I Set up a New fast Router Linksys E3200 and mirroring didn't work at all! I had to disable a Quality of Service option, which cares for multimedia stuff but caused exactly the negative... Ridiculous ....

But in the end 300 MBit/ on 2.4 GHz + 300MBit/s on 5GHz seems not to be enough for smooth AirPlay Mirroring ...

I am experiencing the intermittent, slight video stutter on my ATVG3 as well, although I am not certain the problem is eliminated when the buffering is complete for the content I'm watching. The stutter is definitely reduced, although I still perceive subtle glitches in the video after buffer-complete playback. To be fair, I don't know that my source content is flawless, and need to do some testing with some "known perfect" content. However, the stuttering issue has been present on all locally-streamed content I've watched.

So far I'm disappointed with the ATV unit, as I expected playback to be near perfect. Even though the stutter problem is subtle, it detracts from the viewing experience. The unit should be able to handle smooth playback while receiving content into the buffer, regardless of how crappy my network infrastructure may or may not be. And when the buffer is complete, there is nothing to blame but the ATV unit itself.

Are you all on WiFi? Had the issue till I went Ethernet on my new one I had a 2nd gen but never used it after the update.

The WiFi speed for the iPad and AppleTV is only 65mbps on 2.4 not sure about 5ghz though, because they only put one antenna inside vs laptops with bigger batteries that have 3-4 maybe 5 antennas for WiFi.

Network type (wired vs. wireless) should be completely irrelevant because of the 8GB cache buffer on the device. As long as the network is fast enough to fill the cache faster than playback of the content, which is the case for me, there should be no issue. If the ATV had no buffer, then indeed playback would be completely dependent on the network speed.

If you've just started watching a two-hour movie, and half of it is in the cache, there should be no glitches in the playback, even if the remaining bits are coming in sporadically based on network dropouts or whatever. If the device can't handle this basic concept, shame on Apple.

I'm well aware however even with my 4/5 bars of WiFi I still had issues and plugged in Ethernet and it suddenly worked. I can guarantee you I have no WiFi interference as I don't live close enought to any neighbors for that and I have a 30mbps Comcast Internet using Google DNS and iTunes Match wouldn't even play a song without stuttering on WiFi and my 2nd Gen ATV worked fine WiFi but I never used it after the update.

Same here.

I have some m4v files in 1080p on my imac connected to my atv3 over a gigabit ethernet network. I've only had the atv3 a couple of days and it initially worked OK, but now my files are buffering crazily slow and stuttering. Fantastic.

UPDATE: I just tried rebooting my router and giga switches and it seems to be working OK now???