This guide will show you how to restore the original firmware of a router running ExpressVPN. Before you start, make sure to download the router’s original firmware on the official Asus, Linksys, or Netgear websites.
If you see the “Invalid file. Upload again” message, you may have uploaded a firmware file that is not for your router model or with an incorrect file format. Make sure to download the right firmware file for your router model on the official Asus, Linksys, or Netgear websites.
The correct file format for different router’s firmwares are:
I’ve “bricked” my router
If you have “bricked” your router (it stops responding after because of a fault in the firmware resetting process), contact your router’s manufacturer for assistance.
If you are using a Linksys router, you can also try these steps: