I've been running AV600 (TL-PA4022P) since last summer and they've been fine. However, it's frustrating that they only come equipped with FE ports. So when I needed to add some extra adapters I went with the "faster" AV1000 (TP-PA7017P) adapters which come with GE ports.
To my surprise they are slower than the AV600s! I thought it might be an interop issue so I turned off all the AV600s and ran iperf tests directly between the two AV1000, but the results are the same. In favourable conditions I can get 80-90Mb/s throughput over the Av600. With the AV1000 I can get, at best, 40Mb/s.
So basically I've paid twice as much for a device which is half the speed!
Any idea what's going on here? Is the AV1000 chipset just less tolerant of noise than the AV600?