[rocky13]

use build 18946, it fixes the WAN port issue.

[rafatutihashi]

Where can i find the firmware to download?
Do i need to restore the factory firmware and start it all over again? or can i just upgrade the firmware i'm using (18702)?

[joecop67]

deleted

[inf]

Tried to flash DD-WRT yesterday.

I think i did something totally wrong...it seems that the box is now in somekind strange status. The power light is on but it doesn't even try to get connection from WAN

I used the instruction on the wiki http://dd-wrt.com/wiki/index.php/Asus_RT-N66U

[inf]

Ok got DD-WRT flashed with the asus recovery tool.

But I can't get the box to connect to WAN. WAN gets no ip at all. I flashed the build mentioned on the wiki pages (18946 BIG). What is the difference with big and mega?

I'll test with the 19xx build

[inf]

Well i got it working with the 19xx build from BS

[petrpastor]

Hi all,

Just got mine 66u today. found

a bit hard work to get dd-wrt work.

From experience 10 minutes waiting is bit exadurated more like 3 to 5 minutes.

what is most important is the command:

http://192.168.1.1/do.htm?cmd=nvram+commit

without applying this one ddwrt does not boot.

one thing I found when using Asus's firmware recovery tool - if you have wireless card turned on on your laptop the tool would not connect to router (gets confused by two lan interfaces). works when you turn wifi card off.

Petr

[gatorback]

[adamchal]

I've killed about 4 hours trying to get DD-WRT installed on my Asus RT-N66U. I've followed all of the steps in this post, but I cannot get any version (tried 18702, 18946, 19342, 19519) of DD-WRT to boot (mini, big, mega, etc.). I tried using the web gui and the utility with each version.

I use a static IP configuration on my desktop the entire time.

I'm able to flash the original Asus firmware back onto the device and that works.

Once I upload a DD-WRT through the web guy or utility, I wait 10 minutes, restart it in recovery mode, successfully reset NVRAM, then reboot. The device boots, both wireless LEDs go solid, but I can never ping 192.168.1.1 or access it via the browser.

Anybody have any idea what might be going on here?

[gatorback]

As I understand it, there is a not enough NVRAM allocated for this dual band radio. 64kb is needed and only 32kb is allocated. That being said, modded firmware that overcomes this problem is here:

http://www.lostrealm.ca/tower/node/79

I am hoping that someone will tell me I'm wrong and that this problem has been overcome.

[adamchal]

So, have others applied a fix for the 64Kb NVRAM before using any dd-wrt firmware versions? I see that a bunch of the dd-wrt firmware versions have a 32Kb NVRAM and 64Kb NVRAM versions. I've been trying to install the 32Kb NVRAM versions, but have had absolutely no success.

[gatorback]

As I understand it, the 'fix' needs to be in the dd-wrt firmware. My understanding of the NVRAM allocation is weak at best.

[adamchal]

Well, I was able to install the firmware from http://www.lostrealm.ca/tower/node/79 successfully, but after that I tried to install dd-wrt.v24-19342_NEWD-2_K2.6_mega (no luck) and then tried dd-wrt.v24-19342_NEWD-2_K2.6_mega-nv64k with no luck either.

This is getting really frustrating. I've installed dd-wrt on Linksys devices tons of times with no problems. What is happening here?

[shibby20]

tomato already supported 64K mod for this router

Model Asus RT-N66U
Chipset Broadcom BCM5300 chip rev 1 pkg 0
CPU Freq 600MHz
Flash Size 32MB

Time Wed, 29 Aug 2012 09:44:43 +0200
Uptime 2 days, 02:41:14
CPU Load (1 / 5 / 15 mins) 0.18 / 0.12 / 0.09
Total / Free Memory 249.74 MB / 230.18 MB (92.17%)
Total / Free NVRAM: 64.00 KB / 37.84 KB (59.13%)

Best Regards

[madman999]

so what is the state of DD-WRT on the RT-N66U?

what is the latest build and version to work?

Who has it working well?

from what I gather, because of the 32K/64K NVRAM issue, you should not use anything bigger than STD_USB_NAS?

Is the 5GHZ radio working?

this seems like an important command that should not be skipped

http://192.168.1.1/do.htm?cmd=nvram+commit