Summary: move on dont buy.......Get Ubiquiti Networks, out of the 16 or so i have purchased for several homes almost all have failed at some point or another and I've had to send them back or get a refund from amazon or a local retailer that sold them to me.
Summary: In box directions absolutely horrible. Asus support terrible. I got how to set it up from YouTube!! Finally got it connected and my internet speed went down by 50%. I set it up as an extender which should have increased my connection, but it had the reverse affect.
Summary: Spent over three (3) hours on line with customer support (Chat) got disconnected twice even though I told them if I shut down my connection to my desktop I would loose them. "No you wont", I was assured. Each time I started over I wrote them the exact details of all I had done.
Don't buy if you want to use as a network repeater
30 November 2013
Summary: This unit is a nightmare. I have two other ASUS wireless units (ASUS ASUS RT-AC66U Router and ASUS (RT-N12/B) Wireless-N 300 using in repeater mode) and I love them both and have been giving me flawless performance for almost a year. The tech support with ASUS has been good (no complaints).
Summary: I followed the instructions (including updating the firmware, though that was not in the instructions), but was not able to establish a 5 GHz connection. I contacted product support and followed their instructions but was not able to establish a 5 GHz connection.
Slow, unresponsive UI. Pain in the rear to set up. Causes problems.
24 June 2013
Summary: I purchased this item thinking it could simultaneously act as a adapter and an access point with the intent to connect my computer to the wireless network and allow my mobile devices to have a closer access point. You can't do that. It's either/or, not both.
Range extender non-responsive; ASUS support non-responsive
8 April 2013
Summary: We purchased two of these devices to extend our wifi network across the entire floor of our building. We are using the ASUS RT-N66U as the Access Point, but not DHCP server. After spending several hours trying to get the ASUS EA-N66 configured as a range extender we gave up.
Works well, but advertising makes it sound like it will do 2.4GHz AND 5GHz - it won't. It will do one or the other. May Need TWO
Lee F. Barry "wood werker", Amazon
14 September 2012
Summary: I set this up in extender mode and found that it was only extending the 2.4 GHz band, not the 5GHz band. I sent an email to ASUS, who informed me it will do one or the other, but NOT BOTH AT THE SAME TIME. I've had units much cheaper than this that could do both.