question: How to set up ExpressVPN on Asus routers
answer: 
  This tutorial will show you how to set up ExpressVPN on Asus routers.
  
  ExpressVPN is supported on the following Asus router models:
  
  RT-AC68U (up to v3)
  RT-AC87U
  RT-AC56R
  RT-AC56S
  RT-AC56U
  
  If your Asus router model does not support ExpressVPN, you can use the OpenVPN manual configuration.