you can always solder to the serial pins and plug them to serial ports on a Wireshark-loaded PC via a level translator…
If WiFi works and PPP does not… your provider might be firewalling you out or limiting traffic to certain ports.
you can always solder to the serial pins and plug them to serial ports on a Wireshark-loaded PC via a level translator…
If WiFi works and PPP does not… your provider might be firewalling you out or limiting traffic to certain ports.