u/Powerful_Kangaroo876

I work from home every day and one day my cable modem router just stopped out of nowhere. Everything is plugged in, and the buttons are all green. I checked with the nighthawk app it said that it needs to get the firmware updated, but HOW AM I SUPPOSED TO UPDATE IT WITHOUT WIFI? I tried calling the customer service but I’ve been on hold for 40 mins. This is outrageous