Here’s what I did. I bought a 150W sine wave converter that plugs into a cigarette adapter and converts 12V DC to 110/120 AC power. I then plugged the AC adapter that I got with the router into the AC plug on the adapter. Problem solved. Amazon has the 150W sine wave converters for about $40. Be sure to get a sine wave converter so that your electric flow is without spikes. I hope this helps.