What a coincidence! Mine today suddenly got this issue. Earlier I tried to connect with my iPhone. It detected the wifi ssid but it said "incorrect password" which is very weird. So I turned off and turned the router back on only to discover this

Did this work again for you? Will try again tomorrow see if it somehow magically worked again sigh...

Can't connect through wifi or lan? Try reset but most probably it's dead

Ouch. That's not going to be good. I was fortunate enough to have bought from a very good local seller so he helped me a lot. Good luck with your warranty