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ASUS DSL-N66U Dual-Band Wireless-N 900 VDSL/ADSL Modem Gigabit Router (Up to 100 Mbps Downstream/Upstream, VDSL/2, ADSL2/2+, Annex A/B/J/M, IEEE 802.3/3u, IEEE, 802.11a/b/g/n)

3.5 out of 5 stars 421 customer reviews
| 93 answered questions

RRP: £139.99
Price: £105.06 & FREE Delivery in the UK. Details
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N900 Mbps + ADSL/VDSL modem
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  • True two-in-one modem router with Ethernet WAN and DSL WAN
  • Dual system design offers more performance and flexibility for wired and wireless connections
  • Gigabit Ethernet ports for the fastest, most reliable internet performance

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£105.06 & FREE Delivery in the UK. Details Usually dispatched within 2 to 4 weeks. Dispatched from and sold by Amazon. Gift-wrap available.

Frequently Bought Together

  • ASUS DSL-N66U  Dual-Band Wireless-N 900 VDSL/ADSL Modem Gigabit Router (Up to 100 Mbps Downstream/Upstream, VDSL/2, ADSL2/2+, Annex A/B/J/M, IEEE 802.3/3u, IEEE, 802.11a/b/g/n)
  • +
  • ASUS EA-N66 WLAN Ethernet Adapter (802.11 a/b/g/n Dual-Band 300 Mbps) for WPA2, Windows, Linux and MAC OS
Total price: £162.55
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Style Name: N900 Mbps + ADSL/VDSL modem

Product Information

Style Name: N900 Mbps + ADSL/VDSL modem
Technical Details
BrandASUS
Item Weight1.9 Kg
Product Dimensions30.8 x 23.6 x 10.8 cm
Item model numberDSL-N66U
SeriesDSL-N66U
Wireless Type2.4 GHz Radio Frequency
  
Additional Information
ASINB00GORC5WO
Best Sellers Rank 17,278 in Computers (See top 100)
Shipping Weight1.9 Kg
Date First Available14 Nov. 2013
  
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Product Description

Style Name:N900 Mbps + ADSL/VDSL modem

Product Description

ASUS DSL-N66U - wireless router - DSL - 802.11a/b/g/n - desktop

Box Contains

Router;1 x RJ-45 Lead;1 x RJ-11 Lead;Support Disk;Power Adapter;Quick start guide;Splitter Windows8 , 32bit/64bit, Windows7 , 32bit/64bit, WindowsVista , 32bit/64bit WindowsXP , 32bit/64bit, Mac OS X and Linux Ports : 4 x RJ45 10/100/Gigabits BaseT for LAN 1 x RJ45 10/100/Gigabits BaseT for WAN 1 x RJ11 for xDSL VDSL2/ADSL2+/ADSL2/ADSL multimode Up to 100Mbps/100Mbps upstream/downstream Support Annex A/B/I/J/L/M Support all VDSL2 profiles -8a, 8b, 8c, 8d, 12a, 12b, 17a and 30a VDSL2 interface compliance with ITU-T993.2 G.992.1 (G.dmt), Annex A, and B Compliant G.992.2 (G.lite), Annex A, and B Compliant ANSI T1.413 Compliant G.992.3 (ADSL2) Compliant, Annex A, B, L, and M G.992.5 (ADSL2+) Compliant, Supporting Annex A, B, and M G.993.2 Compliant, Annex A, B, up to profile 30a with external AFE. ATM and PTM (dual-priority)


From the Manufacturer

DSL-N66U RT-N66U RT-N65U RT-N56U DSL-N55U
5GHz 802.11 N supported
Enhanced Wireless Range
N900 (450Mbps + 450Mbps)
N750 (450Mbps + 300Mbps)
N600 (300Mbps + 300Mbps)
USB 3.0 support
Gigabit LAN
DSL modem integrated

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Style Name: N600 Mbps + ADSL/VDSL modem Verified Purchase
I intially wanted the asus dsl-n55u due to the NAS feature, but bought the Billion 7800n based upon all the very good reviews and the fact its almost universally recommended for broadband at long distances from the exchange which i have. With snr tweaking the billion got me 4mbs which was great for my line. long story short... poor wifi, wifi disconnections and admin lockouts. back it went.

I thought id give the asus a go. It shipped with the latest firmware. i loaded it again anyway just to be sure (twice, with the hard reset as recommended) Set up was a breeze. Checked my connection.... Boom! 4mb with a default setup. no tweaks at all! The range of the wifi is fantastic, easily beating the billion. I will attempt tweaks at some point soon, but im more than happy at the moment.

I've connected a usb flashdrive to my router and set up the media server with a click of a button. now i can stream videos straight from my router to my TV, ipad and iphone. it's awesome.

The only downside to this router is the documentation if you want to go anything further than set up the ADSL or wifi. It's not great and there's no where near as many forums covering this as the billion, but for £30 less and with the usb ports, 5ghz wifi faster adsl i know which i'd rather have. It's been rock solid so far. I know the original firmware wasnt great, so ignore the original reviews, its sorted now with the latest firmware. 5 star product without doubt!
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Style Name: N900 Mbps + ADSL/VDSL modem
Important update, please read below
-----------------------------------

I have owned this router for over a week and been having a hell of a time with the DSL ping and speed. I search everywhere online on how to resolve x2 higher ping (from 15ms to 30ms) without success. Firstly you must remember that any new router will face the dreaded DLM ( Dynamic Line Management - https://ttb.custhelp.com/app/answers/detail/a_id/651/~/dlm-%28dynamic-line-management%29 ) that can last week(s) finding the optimum speed. But anyway, here are the things to help.

Here's how to improve speed and decrease ping:

1. Update firmware

2. [wireless] settings
a) Disable [WPS] (security risks)
b) 2.4 GHz
i) Disable [b/g Protection]
ii) Set [Channel bandwidth] to [20 mhz]
iii) Set [Control Channel] to one of [1, 6, 11]
c) 5 GHz (Dont touch)
3. [WAN] settings
a) Disable [uPNP] (security risks)
b) Set [Connect to DNS Server automatically?] to [no] and add [8.8.8.8] and [8.8.4.4] to DNS Server 1 and 2 (Google Public DNS).
c) !important part! Set [MTU] to [1442] and [TCP MSS Option] to [1400] (Improve ping and connection speed).

4. [Advanced] settings, select [DSL Setting] tab
a) Set [DSL Modulation] to [VDSL2] (vDSL line)
b) Set [Rx AGC GAIN Adjustment (VDSL)] to [performance].

I couldn't be more than happier now, extremely fast and great WiFi range/speed! Good luck!

----------------------------------------

Update: 2014-09-16

Unfortunately I've found my vDSL connection dropping again and with the recent DLM effects my connection speed has dropped from 48Mbps to 20Mps. Looked at Asus wireless forum and it seems others are experiencing the same.
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Style Name: N600 Mbps + ADSL/VDSL modem Vine Customer Review of Free Product ( What's this? )
Firstly, it should be said that this is a high end modem router and is designed for use with a dial-up telephone line based adsl internet service and not for use with a cable or external modem.

This router has a modern and up to date appearance, stylish and suitably high tech and will look well on any work desk or even in the living room.

The wizard based setup was easy and straightforward and for most users all they need to do is input their ISP user name and password to access the internet with no need to use the supplied CD. Many adsl routers such as the AVM Fritz! Box Fon 7390 Wireless 4 Port VDSL/ADSL2+ Router DECT VoIP Phone Adaper that I usually use myself now support internet access from a cable, external modem or another router. Not so this router which is limited to an adsl connection only. Although Asus claim a maximum speed of 600Mbps this is slightly disingenuous as this is in fact the combined speed of the 2.4 and 5Ghz network streams. Rival high end routers from Netgear and other now support a single band connection of 450Mbps or higher - although few network adapters yet can handle this. Perhaps I overlooked it but I could not see anyway of using this router as a repeater to another existing router network. As another review has already pointed out this device does not allow for MAC address spoofing - this is a way of fooling some ISPs that insist on their own specific routers being used by allowing the user to input a suitable MAC address into the router settings and which is then passed on to the ISP during the connection process.
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Style Name: N900 Mbps + ADSL/VDSL modem Verified Purchase
I have spent the last 5 days since receiving this router, trying to get theVDSL connection to stay up. As reported by other reviews, there is a major issue with the modem side that causes it to drop the DSL connection regularly, despite updating the firmware tothe latest version (1.0.7.7) that was specifically meant to address this issue (and believe me, updating the firmware on this router from a Mac was no walk I the park but I'll not go into details here).

Furthermore, the WiFi performance is terrible. I have read some reviews stating that it gets better with time. That may be the case but my ps4, situated in the next room (8 meters away through a thin plasterboard partition that passes for a wall in new houses these days) can only get 4.7 Mbps download and 2.3 Mbps up. My BT HH5 was giving me 18/7Mbps!

These aren't just figures; in the real world my LG TV struggled to detect a signal and stutters on streaming and an ATV3 in the same room took so long to load a movie over LAN (!) that I gave up (the file was being streamed from my iMac). I won't go into all the issues I've had but I consider myself to have pretty good IT knowledge and I've spent about 20 hours over the last 5 days trying to sort these issues out with no real success.

In summary;

Positives - it looks good, No it really does and has a very small footprint.

Negatives:
- frequent DSL drops (1-2x daily). If you're in the middle of an online game this is a killer
-WiFi terrible (both speed and range - worse than a BT HH5)
-bug ridden firmware (ie enabling UPNP has not the slightest benefit in enabling services such as Plex and also causes immediate DSL connection)

If the router accomplished half of what the manufacturers claim I'd be happy.
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