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Forum Discussion
GuMANai
Aug 12, 2026Aspirant
Trying to Revive old R6400V2
Title: R6400v2 stuck in initial setup loop – web UI and Nighthawk app both fail Hi everyone, I’m trying to bring an older NETGEAR R6400v2 back into service, but I’ve hit a very strange setup proble...
- Aug 13, 2026
Okay I resolved this using the nmrp flash tool. I flashed the initial release firmware using the tool and then organically upgraded to the latest version. it all went smooth. I cant believe I wasted so much time on the TFTP tool when Nmrp tool was so straight forward !! Thank you FURRYe38
FURRYe38
Aug 12, 2026Guru - Experienced User
Does this long random string seen in other browsers like MS Edge, Firefox or Opera?
Might try a 30-30-30 reset to see if this might help.
FTP access means you get access to FTP send networking protocol only. WEB UI is not working at this stage.
Might try this:
https://github.com/jclehner/nmrpflash
- GuMANaiAug 12, 2026Aspirant
Hi there,
Thank you for the reply and Yes the random string url shows up in other browsers like MS edge aswell and I didnt try in firefox. but this is what the URL is
I did try the 30-30-30 reset but it didnt work. the router just booted normally.