Asus RT-N66U

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TheGuru
DD-WRT Novice


Joined: 11 Jun 2012
Posts: 8

PostPosted: Sun Jun 25, 2017 12:13    Post subject: To Anyone Curious About N66U TX Power... Reply with quote
I've been running my N66U at max TX power for well over a year now with no problems. I do have an active cooling mod in the form of an 80mm fan run off the USB. Without active cooling my temps were upwards of 45-50C. If you're thinking about purchasing one of these pull the trigger, and don't forget a fan and SD card.


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Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 6858
Location: Romerike, Norway

PostPosted: Sun Jun 25, 2017 12:45    Post subject: Reply with quote
45-50C is very cool. Normal temp is 62C.
thearm
DD-WRT Novice


Joined: 25 Jun 2017
Posts: 3

PostPosted: Sun Jun 25, 2017 14:00    Post subject: Is flashing this router safe? Reply with quote
Hello, all

The wiki on flashing this router looks old and inconsistent. Are people safely flashing this Asus RT-N66U router? I just got one and I'd like to do so if it is safe.
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7209
Location: Columbus, Ohio

PostPosted: Sun Jun 25, 2017 14:01    Post subject: Re: Is flashing this router safe? Reply with quote
thearm wrote:
Hello, all

The wiki on flashing this router looks old and inconsistent. Are people safely flashing this Asus RT-N66U router? I just got one and I'd like to do so if it is safe.


It's safe but only if you flash the 3k.x build with the router name in the file.

_________________
I am far from a guru, I'm barely a novice.
thearm
DD-WRT Novice


Joined: 25 Jun 2017
Posts: 3

PostPosted: Sun Jun 25, 2017 14:25    Post subject: Re: Is flashing this router safe? Reply with quote
Malachi wrote:
thearm wrote:
Hello, all

The wiki on flashing this router looks old and inconsistent. Are people safely flashing this Asus RT-N66U router? I just got one and I'd like to do so if it is safe.


It's safe but only if you flash the 3k.x build with the router name in the file.


Thank you,

Is this the firmware I should use?

dd-wrt.v24-26138_NEWD-2_K3.x_mega_RT-N66U.trx

Do you know the difference between big and mega?
Per Yngve Berg
DD-WRT Guru


Joined: 13 Aug 2013
Posts: 6858
Location: Romerike, Norway

PostPosted: Sun Jun 25, 2017 14:45    Post subject: Reply with quote
The latest release as shown in screen-shot by TheGuru.

ftp://ftp.dd-wrt.com/betas/2017/06-01-2017-r32170/broadcom_K3X/dd-wrt.v24-32170_NEWD-2_K3.x-big-RT-N66U.trx

Only positive feed-backs about this build. I use it my self.
thearm
DD-WRT Novice


Joined: 25 Jun 2017
Posts: 3

PostPosted: Sun Jun 25, 2017 14:56    Post subject: Reply with quote
Thank you!
chaser07
DD-WRT Novice


Joined: 26 Jun 2017
Posts: 3

PostPosted: Mon Jun 26, 2017 0:40    Post subject: Having trouble Upgrading to DD-WRT Reply with quote
I cannot seem to get my RT-N66U to work with DD-WRT. I have spent way more time then expected and read through many guides. Can someone please give me a step-by-step guide. Here is my current process with no luck

1. 30/30/30 Hard Reset
2. Recovery Utility to downgrade firmware to FW_RT_N66U_30043762524
3. Wait what seems like 30-40 minutes
4. 30/30/30 Hard Reset
5. Recovery Utility to install the DD-WRT.V24-30771_NEWD2_K2.6_MINI_RT-N66U
6. Wait what seems like 30-40 minutes
7. Notice that dd-wrt is now on my wifi networks list.
8. 30/30/30 Hard Reset
9. Recovery Utility to install DD-WRT.V24-30771_NEWD2_K2.6_BIG_RT-N66U
10. Everything looks perfect, I wait my 30-40 minutes again and only the power light and NIC1 light are on and nothing else happens.

I need to install the Big version and not the Mini and sadly it has to be 2.6 instead of 3.x for a program that interfaces with it. Any tips?
chaser07
DD-WRT Novice


Joined: 26 Jun 2017
Posts: 3

PostPosted: Mon Jun 26, 2017 2:21    Post subject: Reply with quote
I need help with 2.6 not 3.x so it shouldn't be the same stuff your posting over and over. The wiki hasn't helped and there are many variants of tutorials that try to explain how to do it, each one seems to be different and so far none have worked for me.
chaser07
DD-WRT Novice


Joined: 26 Jun 2017
Posts: 3

PostPosted: Mon Jun 26, 2017 12:32    Post subject: Reply with quote
I have successfully gotten kingkong-nv64k-RT-N66U-broadcom.trx to install which is 2.6 but sadly the software I am integrating it with need to be post 6/23/14 and kingkong is 6/7/14 and is lacking chillispot functionality. Ill keep trying, but 2.6 does work I am just having issues getting the right version of 2.6.

What is with the hostility? I thought the forum was to help one another, not to bash and refuse to help or complain about posting over and over again.
Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7209
Location: Columbus, Ohio

PostPosted: Mon Jun 26, 2017 12:54    Post subject: Reply with quote
My apologies. Forget everything I said. Carry on.
_________________
I am far from a guru, I'm barely a novice.
ockhamrazer
DD-WRT Novice


Joined: 20 Feb 2014
Posts: 2

PostPosted: Wed Sep 20, 2017 22:03    Post subject: Reply with quote
the newest build "dd-wrt.v24-33375_NEWD-2_K3.x-big-RT-N66U" bricks the router into recovery.

I am currently using "dd-wrt.v24-30709_NEWD-2_K3.x-big-RT-N66U" as recommended a page back.

I've been able to recover then reflash the 30709 build but am tired of messing with it today

33375 bricked the rt-n66w b1 twice now.

Also I'm getting 120 mbit speeds on a 450 capable router with dd wrt firmware. My old buffalo wzr 300hp with a 400mhz processor got 250 mbit easy. I'd like to upgrade to the latest stable on the Asus rt-n66w to improve overall speeds.
slobodan
DD-WRT Guru


Joined: 03 Nov 2011
Posts: 1555
Location: Zwolle

PostPosted: Thu Sep 21, 2017 0:21    Post subject: Reply with quote
ockhamrazer wrote:
the newest build "dd-wrt.v24-33375_NEWD-2_K3.x-big-RT-N66U" bricks the router into recovery.

I am currently using "dd-wrt.v24-30709_NEWD-2_K3.x-big-RT-N66U" as recommended a page back.

I've been able to recover then reflash the 30709 build but am tired of messing with it today

33375 bricked the rt-n66w b1 twice now.

Also I'm getting 120 mbit speeds on a 450 capable router with dd wrt firmware. My old buffalo wzr 300hp with a 400mhz processor got 250 mbit easy. I'd like to upgrade to the latest stable on the Asus rt-n66w to improve overall speeds.

Use 33215.

_________________
2 times APU2 Opnsense 21.1 with Sensei

2 times RT-AC56U running DD-WRT 45493 (one as Gateway, the other as AP, both bridged with LAN cable)

3 times Asus RT-N16 shelved

E4200 V1 running freshtomato 2020.8 (bridged with LAN cable)

3 times Linksys WRT610N V2 converted to E3000 and 1 original E3000 running freshtomato 2020.8 (bridged with LAN cable)


TreeMan
DD-WRT Novice


Joined: 03 Jun 2013
Posts: 40

PostPosted: Sun Oct 01, 2017 3:26    Post subject: Reply with quote
ockhamrazer wrote:
the newest build "dd-wrt.v24-33375_NEWD-2_K3.x-big-RT-N66U" bricks the router into recovery.

.....

33375 bricked the rt-n66w b1 twice now.


Had the exact same issue with a RT-N66U today. Used slobodan's suggestion to go back to 33215 and was able to install that with no issues.

From the way the lights on the device behaved, it looked like the newer version was either putting the router into some kind of never ending reboot loop, or else it was continually crashing and restarting. I hope this issue can be fixed.

EDIT: Just a few days after I posted this, some very bad vulnerabilities in dnsmasq were publicized. There is a thread about them at http://www.dd-wrt.com/phpBB2/viewtopic.php?t=311483

Because of this, until such time as the boot loop issue is fixed, I suggest that instead of using an older version of DD-WRT (which contains the vulnerable version of dnsmasq), you instead use version 380.68_4 (or later) of the Asuswrt-Merlin custom firmware for Asus routers. The download page is here:

https://asuswrt.lostrealm.ca/download

I discuss this in a bit more detail in my post in the above-mentioned thread. Personally I'd stick with DD-WRT if it didn't have the endless boot loop, but until that is fixed I personally think it is more important to have the fixed version of dnsmasq. Here are some links to articles about this issue (just a small sampling of the many that were published):

https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html

https://thehackernews.com/2017/10/dnsmasq-network-services.html

https://www.theregister.co.uk/2017/10/02/dnsmasq_flaws/

https://arstechnica.com/information-technology/2017/10/code-execution-flaws-threaten-users-of-routers-linux-and-other-oses/

http://www.zdnet.com/article/google-exposes-seven-flaws-in-dnsmasq/

https://threatpost.com/google-warns-of-dos-and-rce-bugs-in-dnsmasq/128238/
teknical
DD-WRT Novice


Joined: 11 Oct 2017
Posts: 1

PostPosted: Wed Oct 11, 2017 19:14    Post subject: Reply with quote
Hi all, I have a network comprised of a NT-56U and NT-66U. I have Andy Padavan's build running on the NT-56U, which uses AP-Client mode to give Internet access to its subnet by piggybacking off the NT-66U's connection to our cable modem. (If you are curious why I want another subnet: The NT-66U is in our electronics closet and the NT-56U is in my personal quarters. Boundaries are very important to me!)

I'm very happy with how I have the NT-56U set up, but I'm completely new at the custom firmware game, so I can only assume that Padavan's excellent firmwarwe is sadly incompatible with my NT-66U.

I looked at a few comparison articles and decided DD-WRT was my best option because it has the best reputation for providing full access to the capabilities of the hardware.

The wiki says that dd-wrt.v24-26138_NEWD-2_K3.x_mega_RT-N66U.trx is the recommended build, but I was wondering if that's up-to-date.

For some perspective: I don't need to push this thing to its limits right off the bat; I just want to be able to explore the full capabilities of the hardware at my own pace. Once I get the right stuff installed, I'm not very interested in going through the process again for a while. I just want to feel like I own the hardware, simple as that!

Is the wiki up-to-date in terms of the most reliable build, or can anyone recommend a better revision? Also: How do I choose between big and mega?
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