Router AC 1750 R6700v3 Power LED Flashing

[Trapper2]

Possible firmware corruption during update when internet connection was lost. No other LEDs are on and no devices can locate the Router

[Kitsap]

Hopefully a lesson learned.  Experienced Netgear users prefer to perform a manual firmware update using an Ethernet connected computer with a web browser.  No internet connection required.

Reference articles:

https://kb.netgear.com/23960/How-do-I-manually-update-the-firmware-on-my-NETGEAR-router

Do not know if your are a Windows user or iOS.

https://kb.netgear.com/000064624/How-do-I-upload-firmware-to-my-NETGEAR-router-using-TFTP-on-Apple-m...

https://kb.netgear.com/000059633/How-do-I-upload-firmware-to-my-NETGEAR-router-using-a-TFTP-client-o...

There are some YouTube videos on this subject.  Not specific step by step, but general overall process.

[plemans]

and if that doesn't work, you can try using nmrpflash
https://github.com/jclehner/nmrpflash