[SOLVED] ASUS RT-N66U Hardware version B1

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shabuboy
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Joined: 29 Jun 2020
Posts: 21

PostPosted: Wed May 31, 2023 18:04    Post subject: [SOLVED] ASUS RT-N66U Hardware version B1 Reply with quote
I followed the instructions/notes/tips from this doc:
https://wiki.dd-wrt.com/wiki/index.php/Asus_RT-N66U#Notes
I am using K3 versions due to "if CFE v1.0.1.3 (64K nvram) or 'NEWER' - DO NOT USE K2.6 builds"

Router: ASUSWRT RT-N66U Hardware version B1
Firmware version: 3.0.0.4_382_52272
bl_version: 1.0.1.9
DD-WRT images downloaded from:
https://ftp.dd-wrt.com/dd-wrtv2/downloads/betas/2023/05-27-2023-r52720/broadcom_K3X/

- Install ASUS latest 3.0.0.4 from 2020
- Manual power off then hold reset + power
- ASUS Recovery Utility: clear NVRAM, once complete, hit continue
- ASUS Recovery Utility: Upgrade to dd-wrt.v24-52720_NEWD-2_K3.x_mega_RT-N66U.trx
- Once it boots, manual power off and hold reset + power
- ASUS Recovery Utility: clear NVRAM, once complete, hit continue
- ASUS Recovery Utility: reboot
- First reboot, Change the admin password and connect to telnet, as soon as I click on other tabs or a small changes, my HTTP and my telnet sessions go off, but still respond to pings.
- Manual power off and on
- After rebooting, connect to HTTP and telnet sessions, as soon as I click on other tabs or a small changes, my HTTP and my telnet sessions go off, but still respond to pings.

Reboots, either clicking on other tabs or any small changes, will disconnect HTTP and telnet sessions, and cannot get it again until another reboot and the same thing occurs.

I tried also other versions such as:
- dd-wrt.v24-52720_NEWD-2_K3.x-big-RT-N66U.trx
- dd-wrt.v24-44715_NEWD-2_K3.x-big-RT-N66U.trx
and the same results.

Any ideas anyone?


Last edited by shabuboy on Wed May 31, 2023 21:35; edited 1 time in total
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ho1Aetoo
DD-WRT Guru


Joined: 19 Feb 2019
Posts: 3004
Location: Germany

PostPosted: Wed May 31, 2023 18:19    Post subject: Reply with quote
Yes
Clear the browser cache CTRL+F5
do not use strange password managers
use the incognito mode of the browser
use another browser

If neither WebIF nor Telnet access works it can be because your IP is blocked ... this can happen when a password manager repeatedly sends wrong data or the browser + cache somehow goes crazy.

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use Pi-Hole as simple DNS-Server with DD-WRT
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VLAN configuration via GUI - 2 CPU ports (R7800, EA8500 etc)

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kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 14247
Location: Texas, USA

PostPosted: Wed May 31, 2023 18:47    Post subject: Reply with quote
He's using the Asus Restoration Utility and Recovery Mode, not a browser. May require older version of utility, OR setting up Recovery Mode and using the mini CFE web server. Recommend using an older version of Firefox Portable. You open http://192.168.1.1 when Recovery Mode is confirmed by flashing power light. Preferred method is via restoration utility, then mini CFE, then older version of stock firmware via webUI.
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ho1Aetoo
DD-WRT Guru


Joined: 19 Feb 2019
Posts: 3004
Location: Germany

PostPosted: Wed May 31, 2023 18:53    Post subject: Reply with quote
Apparently you can not read, flashing works without problems only the interaction with the WebIF not.
_________________
Quickstart guides:
use Pi-Hole as simple DNS-Server with DD-WRT
VLAN configuration via GUI - 1 CPU port
VLAN configuration via GUI - 2 CPU ports (R7800, EA8500 etc)

Routers
Marvell OCTEON TX2 - QHora-322 - OpenWrt 23.05.3 - Gateway
Qualcomm IPQ8065 - R7800 - DD-WRT - WAP
shabuboy
DD-WRT Novice


Joined: 29 Jun 2020
Posts: 21

PostPosted: Wed May 31, 2023 19:13    Post subject: Reply with quote
Thanks @ho1Aetoo

I will give it a try with incognito.
Browsers I've used (the first two on the same machine, MacOs):
- Brave, it does have a password manager
- Firefox, no password manager
- Chrome Flex OS laptop, no password manager

Currently waiting on a reboot from the last Big firmware, takes quite a bit long sometimes.

I should mention, when on the ASUS firmware, all ok with any browser.
shabuboy
DD-WRT Novice


Joined: 29 Jun 2020
Posts: 21

PostPosted: Wed May 31, 2023 21:22    Post subject: Reply with quote
WOW! That did it!
Running Brave in Incognito mode I was able to make all necessary changes
The final running version is DD-WRT v3.0-r52720 mega (05/27/23)
Next are performance and stability tests.

Weird running into this, as yesterday I set up DD-WRT on a Netgear R7000 and had no browser issues at all.

Thanks @ho1Aetoo!
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 14247
Location: Texas, USA

PostPosted: Thu Jun 01, 2023 2:18    Post subject: Reply with quote
ho1Aetoo wrote:
Apparently you can not read, flashing works without problems only the interaction with the WebIF not.

I read just fine, I didn't read the entire post Embarassed. Just like people don't read all available resources before flashing this firmware. Going to add a note to RT-N66U wiki about browser recommendations, which should be use Private / Incognito / InPrivate mode with no add-ons or extensions enabled, whatsoever and no use of internal or add-on password management. Portable Browsers preferred. While we're on the subject, Pale Moon no longer handles the logout escape sequence properly. It's still usable, but logging out doesn't work like it used to.

_________________
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Contribute To DD-WRT
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