I have been trying to follow this thread which seems to pop up over the years with no clear conclusion. We have a similar requirement - multiple devices running on multiple sites not under our control where we want the devices to report in on activation, and to then be able to go in an update firmwa...

Ritesh, Was trying to follow your thread and some of the replies were confusing. Did you ever get a clear response - or what was the outcome of your original post "Is it possible to use OpenVPN or Tiny VPN service inside ESP32 to connect or access ESP32 based device from different network like Virtu...