question: Linux: Unable to browse while not connected to ExpressVPN
answer: 
  If you manually edited your resolv.conf file while you were connected to ExpressVPN, you may be unable to browse the web after you disconnect from ExpressVPN. This may occur even if you are able to browse while connected to ExpressVPN.
  
  To troubleshoot:
  
  In your Terminal, enter
  expressvpn disconnect
  Enter
  sudo ln -sf /var/run/resolvconf/resolv.conf /etc/resolv.conf
  
  If you still cannot browse:
  