First of all, I hope this is the right sub-forum to post this in. If not, mod is free to move it. I am a 95% Apple home environment and in keeping with that my networking gear is made up of Airport Extremes. I am actually using 3 of them at the moment but I may pair that back to 2 based on what information I can gather through this topic. My current setup is as drawn in the top half of the attachment. My iMac (27" 2009 i7 180GB SSD + 1TB HDD) is where I do DVD/BluRay ripping and MP4 encoding. My Mac Mini (2011 i5 128GB SSD + 500GB HDD) is my media center hooked to my TV. Attached to the Mini via USB2 I have a 4 bay external disk enclosure with 4 x 2TB drives containing DVD images and MP4 files. I have 3 Airport Extreme dual band N routers in the house that I have called: Internet, Media, Extender. When I first set this up I had in mind to use the Media Extreme as a way for wireless streaming (iPads, iPhones, Macbooks) to be separate from the wired connection going through the Internet Extreme. Whether that is actually a benefit or not I am not sure. I have verified that the iMac and Mini are both reporting connection at 1000baseT full duplex (automatic settings). The issue that I am having is that when I rip/encode a new movie on the iMac I need to transfer those rather large files over the network to my Mini media center. I noticed the other day that I was only getting about 11.5MB/s between the iMac and Mini. Initially I thought maybe that was a limit of the USB2 connection to the external disk enclosure but I now I routinely get >30MB/s on USB2 transfers of large files. So I did a quick experiment and copied a 4GB MP4 file onto the desktop of my iMac which places it on the SSD. I then copied it to the desktop of the Mini. Transferring from SSD to SSD eliminates any sort of bandwidth limit of the media and should show just the capability of the GE wired link. I still get 11.5MB/s. So now I am wondering if the cheap TP-Link GE switch may be the bottle neck. I am pretty sure I did some tests when I first got the switch that showed it giving transfer rates >80MB/s but now I am not so sure. I am thinking of eliminating one of the Extremes as in the lower half of the attachment. This would get the GE switch out of the path and just have a connection between the extremes. Are there some settings in the Airport Extreme that I should also be paying attention to? The extender extreme is setup in bridge mode so all DHCP comes from the internet extreme. Anything else I should be paying attention to? Any help appreciated.