Please follow the step below to factory reset your router:
1- Please click & hold the RESET button which is to right of the WAN blue port for 30 seconds then release
2- Please wait until the wifi networks shows up then connect and go to the web interface at: http://10.11.0.1
3- Follow the steps mentioned on the Quick Guide email to configure your VPN.
4- Please reboot your router after you finish.