Apple TV and 802.11n = slow?

Even though your devices are 15 (presume you mean ft) apart, I'd still try moving things closer for diagnostic reasons. Other than that I feel you may be suffering some interference, I can't remember whether you can change channel on the n network on an extreme (you definitely can't if you're using dual channel), if you can, you might want to give it a go. I'm also wondering if your mac is properly enabled for n, r whether it's sat right next to the tv.

FYI using 802.11n on 2.4Ghz I get 4Mbytes/second (32Mbps) transfer rate at 20m away through 4 walls.

This is fine for streaming films etc, when I was on 802.11g it wasn't fast enough (even though technically the link speed is high enough).

Actually looking at the Airport Utility "Advanced" tab I can see that I'm only getting 52(Mbps?) on the Rate for my AppleTV.

The Signal is at -75dBm and the Noise at -92dBm.

Shame the Airport Utility help offers no guidance on what normal ranges actually are.

FYI using 802.11n on 2.4Ghz I get 4Mbytes/second (32Mbps) transfer rate at 20m away through 4 walls.

I'm assuming the poster is using 5Ghz, if not please ignore me, but the range of each is completely different.

I was never happy with Airport express frankly. I plan on pluggin my appleTV in. The wireless stiuff just breaks down in a house. Too much interference. I play music at parties and the stuff cuts out and is embarrassing. A cat 5 cable should cure that. I am not bothering with wireless. The movies are just too big too stream. None of the articles I have read have made the streaming sound good.

Streaming over 802.11n works fine, even with interference. I encode my DVDs using the Handbrake preset of 2500kbps, so with audio that's 2660kbps. My wireless is giving me actual throughput of ~32,000kbps, which is fast enough for streaming.

My only issue with the streaming is fast forward and especially rewind which just plain don't work when streaming. Sounds like the AppleTV needs to revise it's buffering techniques to allow rewinding.

Cheers, Ed.

My only issue with the streaming is fast forward and especially rewind which just plain don't work when streaming. Sounds like the AppleTV needs to revise it's buffering techniques to allow rewinding.

One of my tv's is on a 'g' network alongside a wifi HD security camera, I haven't measured the throughput, but it's good enough so that I don't have a problem with RW/FF. However this isn't the point, you and I are talking about 2.4 Ghz the OP was talking about 5 Ghz, even under good conditions with no obstructions our networks have about 3 times the range of the OP's and as soon as you introduce walls, well the difference becomes even greater.

My only issue with the streaming is fast forward and
especially rewind which just plain don't work when
streaming. Sounds like the AppleTV needs to revise
it's buffering techniques to allow rewinding.

FF works for me over streaming.

Oh and Ed, you are confusing kbsp with kBps I think.

I have two Apple TV units connecting wirelessly via 802.11n to a 5GHz Airport Extreme base station. My performance for streaming is great, and I can sync data to them at approximately 500MB/min.

THe key for me was to setup a completely independent 802.11n network using the new Airport Express, leaving the old Airport Extreme base station and AIrport Express repeaters on an indepdent dedicated 802.11g network. The two access points are wired together via Ethernet, and sit beside each other, but the 802.11n network has only 802.11n devices on it (and is configured for 5GHz n-mode only).

The bottom line is that putting even a single 802.11g device on an 802.11n network will significantly reduce the transfer performance (to the point where you might just as well be using an 802.11g network in the first place). Throw a couple of Airport Express units in WDS mode, and you've totally sapped any performance increase the 802.11n will buy you.

I have two Apple TV units connecting wirelessly via 802.11n to a 5GHz Airport Extreme base station. My performance for streaming is great, and I can sync data to them at approximately 500MB/min.

THe key for me was to setup a completely independent 802.11n network using the new Airport Express, leaving the old Airport Extreme base station and AIrport Express repeaters on an indepdent dedicated 802.11g network. The two access points are wired together via Ethernet, and sit beside each other, but the 802.11n network has only 802.11n devices on it (and is configured for 5GHz n-mode only).

The bottom line is that putting even a single 802.11g device on an 802.11n network will significantly reduce the transfer performance (to the point where you might just as well be using an 802.11g network in the first place). Throw a couple of Airport Express units in WDS mode, and you've totally sapped any performance increase the 802.11n will buy you.