I had a working mediacenter using my MBP, the "old" AEBS N, and an attached USB Airdisk where I was storing my movies. Then I replaced the AEBS with the new dualband one (so I moved over from my old N with 7.3.2 to the dualband with 7.4.0 prinstalled) because of 2 iPhones in my household which constantly made a G out of my N network. I dont know what's the problem - the dualband AEBS or its firmware but: When I try to stream a movie or when I copy a file from the airdisk every 10-30 seconds the transfere rate falls down to 0 MB/s and then goes back. When I'm copying a file this equals simply in a longer time that the transfere takes but if I'm watching a movie with VLC the playback stutters. This is SO annoying. I know that I could simply tell VLC to buffer more video in order to "fix" this, but come on... It worked with the old AEBS and 7.3.4 I was hoping that 7.4.2 will fix this, but it doesn't. iStat shows this curve: What I tried: Firmware 7.4.0 + 7.4.1 + 7.4.2 resetting the AEBS using a different videoplayer using a different mac using a different wireless option using a different airdisk using a usb hub using no usb hub Edit: tried different wireless channels tried different multicasting optiions tried a different usb cables tried a different Dualband AEBS Does anyone else, with a similar setup, experiences the same problem or is it in fact hardware related? Dave Edit: This doesn't happen when I download or stream something from the internet so I think it's airdisk related.