Upgrading from RUT240 to RUT241, HTTPS Issues

Replaced a RUT240 Device with a RUT241

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.

Still no avail.