My device is connected to the router via LAN, My device works straight away with the RUT240 without any configuration.
On the RUT241, mobile network is good, however my device can’t reach its server. My device communicates via HTTPS, so i have added a network rule to open Port 443.
Could you explain a little bit more in detail as to what your desired configuration is/should be?
You mention a server of some sort, and a device of some sort - could you provide more details on that? Make sure to not disclose any sensitive information (such as public IP addresses, etc.)