Netgear lost GUI (& all access) after factory reset

Post new topic   Reply to topic    DD-WRT Forum Index -> Broadcom SoC based Hardware
Author Message
puterboy2
DD-WRT User


Joined: 24 Feb 2019
Posts: 139

PostPosted: Fri Aug 12, 2022 6:26    Post subject: Netgear lost GUI (& all access) after factory reset Reply with quote
I am running r49532 on my Netgear r6700v3.
I was trying to configure OpenVPN and mistakenly set the VPN network to 162.168.1.0 which is the same as my LAN network.

This caused the router to be unreachable (and even non-pingable) -- rebooting didn't help...
So, I did a factor reset (held pin in reset button for >20 seconds to be sure).

After a couple of minutes, I was able to access the GUI @192.168.1.1 and verified that everything was reset. However, after about a minute, I lost access to the GUI (and telnet) -- even though I could still ping the router at 192.168.1.1.

Rebooting led to the same situation - initial web access to the GUI (as well as telnet access) for ~1 minute then lost access even though still pingable.

Factory resetting again didn't help. I even once used my one minute of GUI access to do a factory reset from the GUI - again no help.

So it seems like something is causing the router to lose web and telnet access after about a minute.

Since the router isn't able to stay alive for long enough to re-flash, not sure how to fix this.

Any thoughts?
Sponsor
puterboy2
DD-WRT User


Joined: 24 Feb 2019
Posts: 139

PostPosted: Fri Aug 12, 2022 6:39    Post subject: Reply with quote
Strangely, without rebooting, I disconnected from the wired Ethernet and was able to connect to the WiFi using the default dd-wrt SSID and password. And I had GUI and telnet access... but again after a minute, I lost WiFI GUI and telnet connectivity.

So it seems like after each reboot, I get one minute of Ethernet access and (separately) one minute of WiFi until I get kicked off.

If I connect with another computer, I get one minute of Ethernet access and one minute of WiFi.

Weird!
puterboy2
DD-WRT User


Joined: 24 Feb 2019
Posts: 139

PostPosted: Fri Aug 12, 2022 6:59    Post subject: Reply with quote
Seems like the problem is the web GUI.
If I just telnet and don't access the web GUI, then I don't get kicked out and can stay telnet'd seemingly forever.
However, as soon as I access the web GUI, within a minute, I will lose both web and telnet access for that pc and mode of connection.

Also doing a 'nvram erase' didn't help...

However, now that I know I can maintain a stable telnet connection, I should be able to manually reflash the firmware and see if that helps...
the-joker
DD-WRT Developer/Maintainer


Joined: 31 Jul 2021
Posts: 2146
Location: All over YOUR webs

PostPosted: Fri Aug 12, 2022 9:15    Post subject: Reply with quote
Read this thread and provide all the information required.
_________________
Saving your retinas from the burn!🔥
DD-WRT Inspired themes for routers
DD-WRT Inspired themes for the phpBB Forum
DD-WRT Inspired themes for the SVN Trac & FTP site
Join in for a chat @ #style_it_themes_public:matrix.org or #style_it_themes:discord

DD-WRT UI Themes Bug Reporting and Discussion thread

Router: ANus RT-AC68U E1 (recognized as C1)
puterboy2
DD-WRT User


Joined: 24 Feb 2019
Posts: 139

PostPosted: Fri Aug 12, 2022 16:09    Post subject: Reply with quote
Well using Telnet access, I was able to reflash firmware and restore parameters - so I got it working. But puzzled at what would have caused this...
the-joker
DD-WRT Developer/Maintainer


Joined: 31 Jul 2021
Posts: 2146
Location: All over YOUR webs

PostPosted: Fri Aug 12, 2022 17:18    Post subject: Reply with quote
We will never know.

But We can guess and blame the Gremlins



gremlins.jpg
 Description:
 Filesize:  24.62 KB
 Viewed:  888 Time(s)

gremlins.jpg



_________________
Saving your retinas from the burn!🔥
DD-WRT Inspired themes for routers
DD-WRT Inspired themes for the phpBB Forum
DD-WRT Inspired themes for the SVN Trac & FTP site
Join in for a chat @ #style_it_themes_public:matrix.org or #style_it_themes:discord

DD-WRT UI Themes Bug Reporting and Discussion thread

Router: ANus RT-AC68U E1 (recognized as C1)
Display posts from previous:    Page 1 of 1
Post new topic   Reply to topic    DD-WRT Forum Index -> Broadcom SoC based Hardware All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum