question: How to configure OpenVPN for Tomato Routers
answer: 
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  ExpressVPN has released a new app and website interface. If the images you see below do not reflect the latest app or website interface, note that the instructions still apply unless otherwise specified.
  
  This tutorial will show you how to set up ExpressVPN on your Tomato router, using the OpenVPN protocol.
  
  Not all ExpressVPN locations may be available for manually configured connections.
  
  Important: The OpenVPN manual configuration does not offer the same security and privacy benefits as the ExpressVPN app. If your router does not support AES-NI (e.g., Asus RT-AC86U), you may experience occasional speed issues while using the OpenVPN manual configuration. If you are located in a country with a high level of internet censorship, you are recommended to use the ExpressVPN app for a more stable VPN connection.
  
  Tomato is a custom firmware that offers advanced networking features and OpenVPN protocol support. The steps below were tested on AdvancedTomato Version 3.5-140. See a list of AdvancedTomato supported routers.