Netgear R7000 AC1900 with DD-WRT build 27261 not able to acces setting nor revert to Netgear

[carp8000]

Back in 2015 it purchased above mentioned router. Did flash it with DD-RWT. For some years it has not been used. 

Now it tried a 30/30/30 reset in order to factory reset the router and install Netgear software again. 

I´m able to acces to first picture - but when trying to upload firmware I´m prompted for a user and password: (tried the ones I could remember) and also root (user) admin (password). But nothings working - I´m not able to acces the routersettings.

The router is diplayed as DD-WRT and when connecting it works fine on the internet. But the problem is I cannot secure the network. 

Any suggestions to how to reinstall the netgear software? I´m using a mac-computer. 

[myersw · Accepted solution]

In my dd-wrt experience you may need to use a serial connection to restore the Netgear firmware. This would require popping the router cover open. 

Here is a writeup when using a MAC. Probably have two issues right off. Need of both a Ethernet dongle and a serial to USB cable. 

https://community.netgear.com/t5/Nighthawk-WiFi-Routers/How-to-unbrick-the-Nighthawk-R7000-using-OS-...

[michaelkenward]

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@carp8000 wrote:

Any suggestions to how to reinstall the netgear software? I´m using a mac-computer. 

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Talk to the people who create DD-WRT.

There aren't many people here who have deep knowledge of alternative firmware and Netgear certainly does not support it.

[myersw · Accepted solution]

In my dd-wrt experience you may need to use a serial connection to restore the Netgear firmware. This would require popping the router cover open. 

Here is a writeup when using a MAC. Probably have two issues right off. Need of both a Ethernet dongle and a serial to USB cable. 

https://community.netgear.com/t5/Nighthawk-WiFi-Routers/How-to-unbrick-the-Nighthawk-R7000-using-OS-...