I have a R7800 Netgear that I installed OpenWRT on. It functioned fine for a while but then i replaced it with a Unifi AC lite.
So it's been in the cupboard for a while. Today i wanted to set it up as a access-point for a mate that is temporarily staying at a place with dodgy wifi.
I plugged in the R7800 again and performed a hard reset using the reset button. Now i can ping 192.168.1.1 fine. I was briefly able to SSH in. I know the hard reset worked because i got a warning about no password set.
However the GUI is not working at all. I have had problems with this in the past so i was planning to put back stock firmware on it. However at the moment i am not able to SSH into it either (connection refused).
I can still ping the device but nothing else seems to be working. No SSH and no GUI.