@Stephanvl If you don’t have any ports blocked, that should be fine. FarmBot does not need to host any servers to operate normally. Here are some ideas that will help isolate router issues:
Option I: cellular tethering. To rule out issues with the router, soft reset the FarmBot and tether it to a cellphone. Let it sit for a while to see if the problem comes back.
Option II: Use ethernet in “headless” mode. Soft reset the bot. Uncrew the Pi from the electronics box carefully. Bring the Pi inside and power it up via USB cable. Plug the pi into the router via ethernet and reconfigurate. Monitor the device for outages.
If the bot works in either of those setups, then we can be fairly certain it is something about the LAN configuration rather than FBOS. I did not see any particularly telling logs when I inspected your device today.
Has it always been like this, or did it happen recently?