Asus GT-AC2900 Faq page 9

How to update your router to the latest
firmware? (ASUSWRT)
How to update your router to the latest firmware?
Update your firmware regularly to get the latest updates for your router. You can either update
on ASUSWRT or update manually.
Update on ASUSWRT
1. Open a web browser and navigate to ASUSWRT (http://router.asus.com).
2. You will see a pop-up message at the upper right corner if a new version of firmware is
available.