Wiznet W5500 AWS

Hi,
Looking for some support in AWS communication MQTT TLS1.2 on w5500. I am using STM32l5r5ZIt6 Controller.

hi, am using your W5500 module in 2 types of power units. The 1 st unit communicates perfectly at 100mbps… while the 2 nd type of units is not communicating at 100mpbs rather communicates only in 10mbps.

Kindly guide us how do we go ahead ?/
also, let me know if any technical support personal is avbl at banagalore, India ?? kindly communicate to resolve issue at the earliest. Thanks & regards