This is mean that your local host is canceled the connection. Reasons are:
you exhausted ephemeral ports
you have a strict firewall (you need to check their logs)
you have a network misconfigured (it’s not able to establish an external connections)
a simple one - your contact address (and port) doesn’t available externally (you may check this using your advertised external address and port on your smartphone’s browser and a mobile internet).
Also, I would suggest to remove the decommissioned satellites: