Partial bricked EX6200

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bhill21
DD-WRT Novice


Joined: 25 Mar 2020
Posts: 16

PostPosted: Mon Mar 30, 2020 11:04    Post subject: Partial bricked EX6200 Reply with quote
I was trying to upgrade to the latest 42803( mar 2020) from a 2017 build and now the router has both 2 and 5ghz are red. I have no web access as 192.168.1.1 does not work.

The big problem is when I go to dd-wrt ssid, it wants a password. Never gave it one and don’t know what it is. I can see my Ethernet cable plugged into port 5 but no go. I have tried 30/30/30 and it doesn’t shake it loose either.

Any help would be appreciated
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Malachi
DD-WRT Guru


Joined: 17 Jul 2012
Posts: 7221
Location: Columbus, Ohio

PostPosted: Mon Mar 30, 2020 11:21    Post subject: Reply with quote
Password is on the bottom.
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bhill21
DD-WRT Novice


Joined: 25 Mar 2020
Posts: 16

PostPosted: Mon Mar 30, 2020 12:23    Post subject: Reply with quote
Sorry, tried that already. It was “password” and didn’t work
bhill21
DD-WRT Novice


Joined: 25 Mar 2020
Posts: 16

PostPosted: Mon Mar 30, 2020 12:46    Post subject: Solved Reply with quote
Found a laptop with Ethernet. Put the cable into port 1. Tried GUI and no connect. Ran diagnostics tool on win10. Tried again and login screen appeared. Thanks for help.
malgatez
DD-WRT Novice


Joined: 27 Apr 2020
Posts: 3

PostPosted: Mon Apr 27, 2020 11:02    Post subject: Reply with quote
Hi BHill21,

I am having the same issue. I flashed the on it and now I cannot reach it any more. I used it as an acces point with no DHCP. I am not sure if it even had a set ip address, since my router had an dhcp active.

How ever I tried you method. Lan 1 is the one on the left side, right? I gave my computer a set IP 192.168.1.4 and I cannot connect to eigther 192.168.1.1 or 192.168.1.2 (which was the ip the EX6200 was reachable before).

Any other suggestions? If I attach it to my network the EX6200 only works as a network switch, which is also weird...

any help is appreciated.
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7203
Location: Texas, USA

PostPosted: Mon Apr 27, 2020 14:05    Post subject: Reply with quote
I guess I didn't see this one before. You don't 30/30/30 this device. Only thing I can suggest is to press and hold the reset button for ~7-10 seconds, release, let it reboot and try again. I'm not going to ask what build you flashed to it.
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malgatez
DD-WRT Novice


Joined: 27 Apr 2020
Posts: 3

PostPosted: Tue Apr 28, 2020 9:13    Post subject: Reply with quote
I used the one one the Router Database:

V3.0 40559. https://dd-wrt.com/support/router-database/?model=EX6200_v1

Reset is not wroking. Or at least not that I can tell. I can press it as long as 2 minutes and nothing is happening. Sad
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7203
Location: Texas, USA

PostPosted: Tue Apr 28, 2020 9:58    Post subject: Reply with quote
That @#$%^&*! router database. Still doesn't have the disclaimer yet, I bet. You should only have to press it until the link lights do their thing.

https://kb.netgear.com/24488/EX6200-WiFi-Extender-FAQs

Latest build release thread (Broadcom): 04/20/2020 - r42954

https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2020/04-20-2020-r42954/netgear-ex6200/

Installation Wiki

Where Do I Download Firmware?

Firmware FAQ

https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2020/

Not sure if you have to TFTP, serial recovery, or nmrpflash those things to recover them.

https://wiki.dd-wrt.com/wiki/index.php/Tftp_flash

https://wiki.dd-wrt.com/wiki/index.php/Serial_Recovery

https://github.com/jclehner/nmrpflash (downloads, click on "releases")

_________________
Official Forum Rules, Guidelines, and Helpful InformationFirmware FAQInstallation WikiWhere Do I Download Firmware?
DON'T use Chromium-based browsersRTFM/STFW - TL;DR is NOT an excuse. • Why Should I Care What Color the Bikeshed Is?
Please DO NOT PM me with questions; Ask in the forum.

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malgatez
DD-WRT Novice


Joined: 27 Apr 2020
Posts: 3

PostPosted: Wed Apr 29, 2020 18:18    Post subject: Reply with quote
thanks!!! That did the trick. I used https://github.com/jclehner/nmrpflash and with this command

Code:
nmrpflash -i net0 -f EX6200-V1.0.0.38_1.1.52.chk -vvv
with this FW from Netgear's website: EX6200-V1.0.0.38_1.1.52.chk

I went this route:

- Switch on the router
- Send command
- Switch off the router immediately
- Switch on the router

Took quite so while. In the end it asks you to reboot. Did not see this, so I waited for an hour. Just disconecting the router was enough.

I will reflash it right now.
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7203
Location: Texas, USA

PostPosted: Wed Apr 29, 2020 18:28    Post subject: Reply with quote
Another new release posted today, but glad you got it sorted out.
_________________
Official Forum Rules, Guidelines, and Helpful InformationFirmware FAQInstallation WikiWhere Do I Download Firmware?
DON'T use Chromium-based browsersRTFM/STFW - TL;DR is NOT an excuse. • Why Should I Care What Color the Bikeshed Is?
Please DO NOT PM me with questions; Ask in the forum.

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Linux User #377467 counter.li.org / linuxcounter.net
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