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ASUS RT-N66U Dual Band Wireless-N900 Gigabit Router E-mail
Reviews - Featured Reviews: Network
Written by Steven Iglesias-Hearst   
Tuesday, 06 March 2012
Table of Contents: Page Index
ASUS RT-N66U Dual Band Wireless-N900 Gigabit Router
Features and Specifications
Closer Look: ASUS RT-N66U Wireless-N Router
ASUS RT-N66U Detailed Features
Testing and Results
Final Thoughts and Conclusion

ASUS RT-N66U Features

Incredible Performance with Incredible Control
The ASUS RT-N66U dual-band wireless-N900 gigabit router delivers incredible performance and coverage range. With new ASUSWRT UI, quickly setup your network, customize user access, and monitor signal strength. Following the award-winning RT-N56U, the RT-N66U increases Wi-Fi speed for both 5 GHz and 2.4 GHz transmission by 50% up to 900Mbps that makes it ideal for bandwidth demanding tasks such as 3D HD video steaming, multiplayer gaming, USB hard drive file sharing, and USB connected printer sharing. Built-in Wi-Fi amplifiers make the RT-N66U the perfect wireless router for larger, multi-level homes and buildings with signal range that reaches virtually any area.

Whether you're a tech-savvy enthusiast or a first-time user, the RT-N66U is exceptional easy to use with CD-free, Quick Installation Setup (QIS) that lets you plug-n-surf right out of the box and connect PCs, smartphones, tablets, and other wireless devices quickly. Thanks to its refined interface tools, you get control like never before, letting you monitor signal strength, setup parental settings, and other useful functions in a robust yet intuitive way.

Designed for Class-Leading Speed and Range
Designed with the latest in networking technology, the RT-N66U delivers exceptionally fast wired and wireless connectivity. What's more, it comes with a powerful detachable Wi-Fi antenna to further extend wireless range.

Dual-Band Connectivity for Lag-Free Entertainment

Delivering both 2.4 GHz and 5 GHz concurrent bands up to 450Mbps and 450Mbps respectively, the RT-N66U has a total speed of up to 900Mbps connectivity to provide speed with stability. Perform basic internet tasks like Web browsing and file downloading under the 2.4 GHz band, while also simultaneously streaming 3D HD content and other demanding applications smoothly on the 5 GHz band.

Optimized and Reliable Wireless Coverage via Ai Radar

ASUS Ai Radar intelligently strengthens connections to wireless devices. With high-powered amplification and beam package, it provides optimized signals in any direction with better coverage to improve data throughput

Powerful functions, easiest management

With the ASUSWRT Dashboard UI, setup, monitor, and control network applications all in one intuitive area. The whole new dashboard interface lets you manage all clients and settings on a single graphical interface and provides 1-click updates.

Optimize Your Network for You

Do you game a lot, or spend most of your time streaming videos? Whatever your planned use is, the RT-N66U has a Quality of Service (QoS) that lets you select how much bandwidth is prioritized for virtually any task. Plus, the traffic monitor allows you to check your Web usage in a clear and graphical interface.

Two Multi-Functional Built-in USB ports

Featuring connectivity to devices, FTPs, SAMBA, UPnP AV servers, and DLNA support, the RT-N66U makes sharing and networking easier with two built-in USB ports. Download HTTP, FTP, and P2P files to a router-connected USB storage device all day without the need of PC. Additionally, the twin USB ports allow network printer and file server connections, so you perform multiple tasks at once.

Download and Stream From Anywhere

Download Master and DLNA server lets you download and play multimedia files stored on a router-attached USB storage device on DLNA-compatible devices such as PC, tablet, PS3, XBOX, and Internet TV. Download Master can also download files while a PC is turned off, and allows you to manage and monitor download status remotely.
Powerful Online Multitasking up to 300,000 Data Sessions.

Support for a massive data pipeline of up to 300,000 data sessions means the RT-N66U has around 20 times the networking capacity of other conventional routers for exceptionally smooth performance.

Separate and Secure Wi-Fi Network via Guest Network Access

The RT-N66U supports up to three wireless networks over the 2.4 GHz band and three over the 5 GHz band, so it can protect computers from any unauthorized access, hacking and virus attacks. The parental control allows you to set up your kids' computer access times.

VPN Server Enabled

Easily set up a VPN server to surf the Web and access data-no matter where you are. Featuring MPPE encryption, your data transmission will be secure and confidential.


ASUS RT-N66U Specifications

Network Standard IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IPv4, IPv6
Ports 4 x RJ45 for 10/100/1000/Gigabits BaseT for LAN, 1 x RJ45 for 10/100/1000/Gigabits BaseT for WAN, Support Ethernet and 802.3 with max. bit rate 10/100/1000/Gigabits Mbps and auto cross-over function(MDI-X)
USB 2.0 x 2
Antenna Detachable antenna x 3
Power Supply AC input: 100V-240V (50-60HZ)
DC output: 19V max 1.58A
Dimensions 207 x 148.8 x 35.5 mm (WxDxH)
Weight 450g
Operating Frequency 2.4G~2.4835GHz /5.1~5.8GHz
Data Rate 802.11n: up to 450Mbps
802.11a/g: up to 54Mbps
802.11b: up to 11Mbps
Encryption 64-bit WEP, 128-bit WEP, WPA2-PSK, WPA-PSK, WPA-Enterprise, WPA2-Enterprise, WPS support
Management UPnP, DLNA, DNS Proxy, DHCP, NTP Client, DDNS, Port Trigger, Virtual Server, DMZ
Network Protocol Internet connection type : Automatic IP, Static IP, PPPoE(MPPE supported), PPTP, L2TP
Dual Link support
Multicast Proxy support
Security Firewall: SPI intrusion detection, DoS protection
Access control: Parental control, Network service filter, URL filter, Port filter
VPN Support IPSec Pass-Through
PPTP Pass-Through
L2TP Pass-Through

Download master:
- support BT, NZB, HTTP, ED2K
- support encryption, DHT, PEX and magnet link
- upload and download bandwidth control
- download scheduling

Media server:
- Image: JPEG
- Audio: mp3, wma, wav, pcm, mp4, lpcm, ogg
- Video: asf, avi, divx, mpeg, mpg, ts, vob, wmv, mkv, mov

- User definable rules for IP/MAC/Port. Upload and Download bandwidth management.
- ACK/SYN/FIN/RST/ICMP with Highest priority.

Guest Network: 2.4GHz guest network x 3, 5GHz guest network x 3
Printer Server: multifunctional printer support(Windows only), LPR protocol support
File server: Samba and FTP server with account management
PPTP VPN server
Network map
Traffic monitor




# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit Routerbobobobo 2012-03-06 18:33
The maximum transfer speed is 450Mbps.

450Mbps in 2.4Ghz and 450Mbps in 5Ghz.

You can't put them together and say 900Mbps. That's where I quit reading your review btw.
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# RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterOlin Coles 2012-03-06 19:55
I'm not sure you ever started reading the review, because N900 is the model number and the specifications are supplied by ASUS.
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# RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterJay 2012-03-06 21:19
If you would have read it correctly, you will notice he was posting Asus specs, not "real world" performance.

Take your time in the future. It's obvious speed reading is not your thing.
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# RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2012-03-07 13:21
That's like saying you cant make bleach from salt water, it sounds preposterous I know, but that is exactly is happening.
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# Works as statedGlock41 2012-04-01 13:27
great router. No need to use the printer Epson 615 has that already. Range is great. Updated the firmware and is still a lil buggy, but I would recommend this router.
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# RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RoutertomBMV 2012-08-24 12:05
well, technically, when you are having two computers running file transfer from the network shared hard-drive (on a regular router,) the speed will split half no matter what,
on behalf of this new tech router, i ran two different laptops for copying couples files from two shared hard-drives and their speed come closed to 450....nbps

gotta test it yourself to reallize the different
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# 450Mbpsloverbull 2013-11-05 12:59
the 450mbps is per band, to access 2 bands you need 2 wifi card with 2 adapters built in, i've just ordered one.. :-)
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# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterDoug Dallam 2012-03-07 16:01

I was wondering if you did any testing at 2.4Ghz, since 2.4Ghz has better penetration of solid objects, and can have better performance in some situations (walls and distance).

This review was ironically timed because I just installed an ASUS(PCE-N15) PCI card in my main machine (Mortal online uses a strange PVP prediction system that seems to give advantages to wireless lag in Melee situations (acts like a lag switch), for some reason).

But it only supports connections in the 2.4Ghz band. My router is a dual band router. Although my internet connection is maximum 8 Mbps, and the router is only 3' from the main machine, I'm wondering if I should return the PCI version and get the USB version you reviewed.

At this time I'm getting identical ping and transfer rates from my ISP as I do when I'm 100% wired. Any suggestions?
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# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2012-03-07 16:08
The Wireless G test was 2.4GHz (5GHz is wireless N only), and I think you should stick with the PCE-N15 PCI card or go wired if you are only 3' away from your router.
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# RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterDoug Dallam 2012-03-07 16:25
What do you mean when you say 5Ghz is wireless N only? My card is wireless N but only uses the 2.4Ghz band.

I was wondering how the N adapter would perform on the 2.4Ghz band.
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# RE: RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2012-03-08 14:03
I will run some tests for you ;)
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# RE: RE: RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterDoug Dallam 2012-03-08 16:20
Sweet! I live alone and don't have any need for wide bandwidth. The 2.4Ghz spectrum should be fine, even if it can only produce 150Mbs, which is much higher than anything I'll have need for. I have read you can about double that will taking around 86% of the 2.4 space, but I'm not clear how that works or if the router/adapter does it automatically.

I'm thinking that my setup is going to deliver no less speed than using the 5Ghz spectrum. Again, I'm not transferring information between any LAN.
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# RE: RE: RE: RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2012-03-08 16:37
Speeds are slightly slower on the 2.4GHz band. The 5GHz band has a stronger and faster connection.
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# RE: RE: RE: RE: RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterDoug Dallam 2012-03-08 18:34
Looks like I'll stick with the card I have then. My internet connection isn't going to get anywhere near even 56Mbps anytime soon anyway, and is now maximum 8Mbps. Thanks.
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# Where did you find an EA-N66?Dhave 2012-03-08 13:40
I thought the ASUS EA-N66 had not been released yet (as of 8 march 2012). I'm talking about this beauty:

Has anyone located a source for these yet?
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# RE: Where did you find an EA-N66?Steven Iglesias-Hearst 2012-03-08 14:09
You would be right there Dhave, it hasn't been released yet. I have one and I am currently running some tests, and yes she is a beauty. As for release dates and sources, we still haven't had the official word from ASUS yet.
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# PulTabWarren Allely 2012-03-12 07:14
The one I ordered from Newegg is out for delivery today.
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# RE: PulTabDhave 2012-03-12 08:33
I don't see the EA-N66 listed on the Newegg site.
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# RE: RE: PulTabWarren Allely 2012-03-12 08:39
The RT-N66U is available for pre-order on the Newegg website which is what I did. Took two days before it was shipped. Sorry I didn't notice the "EA-N66" part.
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# RE: RE: RE: PulTabDhave 2012-03-12 08:42
O.K., thanks. Enjoy your new router. It's spiffy.
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# 4g sharing ?Dan 2012-03-12 12:21
I noticed that you wrote that it would be possible to share 4g as well as 3g connection. Is this confirmed ? I would really love that since the only thing that is keeping me from ordering one of these is that I need to be able to share a 4g connection, and I can't seem to get an confirmation that this will work.

This quote gives me hope :)

"The ASUS RT-N66U has two built in USB 2.0 ports that allow you to share printers and USB storage over LAN and WAN, and also allows you to share a 3G/4G internet connection.!
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# RE: 4g sharing ?Steven Iglesias-Hearst 2012-03-12 13:30
4G - Referred to as WiMax - is supported by the RTN66U. It is a little hard to see in the router settings screen capture on the Detailed Features page: (last one)

Here is a zoomed in screen capture:
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# RE: RE: 4g sharing ?Dan 2012-03-12 14:41
Thanks for the answer, it's really good news :)

Feel a bit silly for not realizing that WiMax was the same thing as 4g, but you learn something every day.
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# RE: RE: RE: 4g sharing ?Jimmy Jazz 2012-03-17 11:49
Don't feel bad, WiMax and 4G aren't necessarily interchangeable terms, there is also the competing 4G LTE. I don't think you'll be able to share a Verizon 4G connection with this thing, for example.
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# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit Routerdavid 2012-03-12 21:42
I own this router and it is simply amazing. The new firmware doubles the transmit power i believe from 40mw to 80mw (someone correct me if i'm wrong). I nearly have double the signal strength compared to the netgear wndr3800 and other reviews i have read say that its thoroughput is better than the wndr4500. You get what you pay for and its worth every penny as this router is loaded with features. I recommend it 110 %!
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# VPN support?Todd 2012-03-15 06:17
Does this support VPN? The ASUS RT-N56 doesn't apparently and I do about 25-30 hours work from home per week, and need to upgrade from my old DLINK wireless router. And having the VPN support is a MUST for me.

Thanks in advance!!
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# RE: VPN support?Steven Iglesias-Hearst 2012-03-15 13:20
Yes, it's detailed in the features and specifications. :D
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# Shared Printer supportdavid 2012-03-15 14:02
Just wanted to chime in about the Print server in Windows 7 will not work unless the firmware is upgraded to the latest version. It had bewildered me for a week until I checked the firmware release notes.
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# Over heating issueK-Man 2012-05-27 12:10
The Asus N900 get very hot. Is that an issue that will cause it to not work?
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# Mr.Rahul Jawale 2012-06-13 20:59
Just use a USB Fan. :) I can see a small bit of performance increase after adding active cooling.
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# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2012-05-27 14:01
Haven't noticed any temperature issues.
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# Question About 3G Capable Asus RT-N6 UCharles 2012-10-11 19:19
Does the discussion here mean the N66U can connect to the Internet using a 3G USB thumb modern from a ISP provider? I live in a rural area and want to use the router to also connect my smartphone and Internet radio, along with my computer, to the Internet. Sorry I'm not smart enough to make myself more clear.
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# RE: Question About 3G Capable Asus RT-N6 USteven Iglesias-Hearst 2012-10-12 09:19
Yes that is the case according to the ASUS specifications, although I am not able to test it as I don't have a 3G dongle.
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# Thank you, Steven!Charles 2012-10-12 09:34
Much appreciation for taking your time to help me. Best wishes.
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# Actual Maxima DistanceJames Wang 2012-11-07 07:08
I was wondering, how many meters the RT-N66U wireless distance it can cover. Because I want to use it in my home that have 3 floor.
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# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2012-11-07 10:42
Line of sight distance and multi storey distance will produce different results because of physical obstacles that may degrade or block the signal. As I don't have a 3 floors on which to test I can't really offer you a true answer. You would do much better to contact ASUS support, or check Youtube for the video reviews JJ from ASUS did for the RT-N66U.
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# Parental Controls Page FailureJay 2013-02-05 11:10
Recently purchased the RT-N66U and I have been impressed with the performance and features. However, there is still an issue with parental controls UI. After adding 5 devices the ASP code hung up and the page no longer displays properly. The only way to return to a working page is to re-apply the most recent firmware. Still waiting for reply from Asus on a resolution if one exists. Overall though it is an excellent router.
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# Easy out of the boxKawabunga18 2013-02-05 11:10
I went ahead and picked up a N66U from the local big box store I must say set-up was a breeze. I'm having some issues getting the VPN going with my dynamic WAN IP but I must be doing something wrong. It seems the new price tag is below $170 everyone is selling it at the price well worth the money from what I can see so far based on its performance. I still get 6 meg d/l on my WiFi in the basement with the N66U two stories up on the top floor.
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# RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterDavid 2013-06-16 12:43
I don't understand why reviews for this product consistently refer to the "parental controls" as a means to "allow you to control internet time limits." That is NOT what this feature does. What it does is control what hours of the day the device can access the internet. You can only seat a LIMIT if you also specify the EXACT times the internet can be accessed as well. So, for example, if you wanted to limit access to 20 hours a week, you have to also specify the exact hours of access. If the device is not used every minute of those times, then the "limit" is a lower number. There is no way to allow 20 hours a week (or 4 hours a day), and let the user have a say in when they can use it.
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# RE: RE: ASUS RT-N66U Dual Band Wireless-N900 Gigabit RouterSteven Iglesias-Hearst 2013-06-16 16:41
Your comment is a little pedantic don't you think, David. I can limit my children to 2 hours internet per day in more ways than one. Sure one way is to tell them that they can have only two hours and allow them to choose when to use the time. I can also specify that time for them, and whether they choose to use the entire sum of their allotted is completely irrelevant. Time is limited when control lies with another, no matter how you choose to look at it.
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